Presentations

Vasculitis

This is a term used to describe inflammation of the blood vessel walls. It leads to generalised inflammatory symptoms (fever, fatigue, weight loss and myalgia) as well as symptoms according to which organ or tissue is affected secondary to the regional ischaemia.   Large Vessel Vasculitis These conditions involve inflammation of the large arteries like the aorta and its major branches. Temporal (giant cell) Arteritis This is a granulomatous vasculitis involving branches of the carotid artery. This leads to patches of inflammation which “skips” parts of the affected artery. It is the most common vasculitis in adults older than the

Connective Tissue Disorders

Systemic lupus erythematosus (SLE) This is a chronic systemic autoimmune disease, which is classically seen in middle-aged women, particularly in black and Hispanic demographic groups. Whilst the exact cause is unknown, poorly cleared apoptotic debris activates autoimmune lymphocytes leading to the generation of immune complexes. Inadequate clearance (due to deficient complement proteins) means that these immune complexes are deposited in multiple tissues, leading to inflammation. It can also be drug induced, which is associated with higher anti-nuclear antibodies than anti-double stranded DNA antibodies. It typically displays a relapsing and remitting pattern of disease. Symptoms Inflammatory signs – fever, weight loss,

Connective Tissue Disorders

Systemic lupus erythematosus (SLE) This is a chronic systemic autoimmune disease, which is classically seen in middle-aged women, particularly in black and Hispanic demographic groups. Whilst the exact cause is unknown, poorly cleared apoptotic debris activates autoimmune lymphocytes leading to the generation of immune complexes. Inadequate clearance (due to deficient complement proteins) means that these immune complexes are deposited in multiple tissues, leading to inflammation. It can also be drug induced, which is associated with higher anti-nuclear antibodies than anti-double stranded DNA antibodies. It typically displays a relapsing and remitting pattern of disease. Symptoms Inflammatory signs – fever, weight loss,

Arthritis

Osteoarthritis This is a condition where there is progressive degeneration of the articular cartilage. It is a non-inflammatory arthritis which occurs due to “wear and tear” of the joint. It usually affects the hips, knees, and the distal interphalangeal joints of the hand. Risk factors include age, obesity, occupation (e.g., strenuous job) and trauma.   Symptoms Non-inflammatory joint pain (stiffness < 30 minutes), affecting individual joints in a non-symmetrical pattern Joint pain that worsens during the day Joint clicking (crepitus), instability May have joint effusion or antalgic gait Bony enlargements in fingers, called Heberden’s nodes (DIP joints) and Bouchard’s nodes

Bone Conditions

Achondroplasia This is the most common cause of dwarfism, which occurs due to a gene mutation in the receptor that converts cartilage to bone during development. It is due to an activating mutation (usually sporadic) in FGF3 (autosomal dominant). This gene is found in chondrocytes and inhibits growth favouring differentiation. Whilst endochondral ossification is affected, there is normal intramembranous bone formation meaning that patients have a normal skull and torso but short limbs. It leads to dwarfism with short limbs but a normal head and chest size.   Symptoms Short limbs with normal head and chest   Management Growth hormone

Bone Conditions

Achondroplasia This is the most common cause of dwarfism, which occurs due to a gene mutation in the receptor that converts cartilage to bone during development. It is due to an activating mutation (usually sporadic) in FGF3 (autosomal dominant). This gene is found in chondrocytes and inhibits growth favouring differentiation. Whilst endochondral ossification is affected, there is normal intramembranous bone formation meaning that patients have a normal skull and torso but short limbs. It leads to dwarfism with short limbs but a normal head and chest size.   Symptoms Short limbs with normal head and chest   Management Growth hormone

Arthritis

Osteoarthritis This is a condition where there is progressive degeneration of the articular cartilage. It is a non-inflammatory arthritis which occurs due to “wear and tear” of the joint. It usually affects the hips, knees, and the distal interphalangeal joints of the hand. Risk factors include age, obesity, occupation (e.g., strenuous job) and trauma.   Symptoms Non-inflammatory joint pain (stiffness < 30 minutes), affecting individual joints in a non-symmetrical pattern Joint pain that worsens during the day Joint clicking (crepitus), instability May have joint effusion or antalgic gait Bony enlargements in fingers, called Heberden’s nodes (DIP joints) and Bouchard’s nodes

Fractures

A fracture is a medical condition where the continuity of the bone is broken. When describing a fracture, it is essential to describe the type and severity of the fracture. Adequate description includes providing information about a number of different categories: Open or closed? Closed fracture = a broken bone with no open wound Open fracture = a broken bone with a break in the skin   Simple or comminuted? Simple = a fracture where the bone is broken into two fragments Comminuted = bone is splintered or crushed into several pieces   Angle of break? Transverse = this is

Arthritis

Osteoarthritis This is a condition where there is progressive degeneration of the articular cartilage. It is a non-inflammatory arthritis which occurs due to “wear and tear” of the joint. It usually affects the hips, knees, and the distal interphalangeal joints of the hand. Risk factors include age, obesity, occupation (e.g., strenuous job) and trauma.   Symptoms Non-inflammatory joint pain (stiffness < 30 minutes), affecting individual joints in a non-symmetrical pattern Joint pain that worsens during the day Joint clicking (crepitus), instability May have joint effusion or antalgic gait Bony enlargements in fingers, called Heberden’s nodes (DIP joints) and Bouchard’s nodes

Connective Tissue Disorders

Systemic lupus erythematosus (SLE) This is a chronic systemic autoimmune disease, which is classically seen in middle-aged women, particularly in black and Hispanic demographic groups. Whilst the exact cause is unknown, poorly cleared apoptotic debris activates autoimmune lymphocytes leading to the generation of immune complexes. Inadequate clearance (due to deficient complement proteins) means that these immune complexes are deposited in multiple tissues, leading to inflammation. It can also be drug induced, which is associated with higher anti-nuclear antibodies than anti-double stranded DNA antibodies. It typically displays a relapsing and remitting pattern of disease. Symptoms Inflammatory signs – fever, weight loss,

Vasculitis

This is a term used to describe inflammation of the blood vessel walls. It leads to generalised inflammatory symptoms (fever, fatigue, weight loss and myalgia) as well as symptoms according to which organ or tissue is affected secondary to the regional ischaemia.   Large Vessel Vasculitis These conditions involve inflammation of the large arteries like the aorta and its major branches. Temporal (giant cell) Arteritis This is a granulomatous vasculitis involving branches of the carotid artery. This leads to patches of inflammation which “skips” parts of the affected artery. It is the most common vasculitis in adults older than the

Physiology of Pain

Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage. – It is detected by nociceptors, which are thinly myelinated Ad or unmyelinated C fibres – free nerve endings – These nociceptors have specific ion channels which respond to noxious stimuli, to initially signal pain.   –> TRPV1 activated by heat and capsaicin –> TRPM8 activated by cold and menthol   After tissue damage, many chemicals stimuli stimulate nociceptors, including ATP (released from damaged cells) and H+ ions, released in anaerobic metabolism. – These excite and stimulate nociceptors. – Nociceptor activation gives peptide release leading

Immunology

The immune response can be split into the innate and adaptive system:   Innate Immunity This is immunity which is dependent on antigen receptors that are germline encoded   The innate immune system recognizes 3 types of stimulants, which activate the innate response: – Pathogen associated molecular patterns (PAMPs) – molecular shapes specific to the pathogen – Danger associated molecular patterns (DAMPs) – self-molecules released by host stressed cells – Missing-self – Infected cells do not show normal self-antigens which protect host cells from NK cells.   The activation of these receptors gives acute inflammation and activation of the following

Lower Limb Anatomy

The lower limb comprises of three main joints – the hip, knee and ankle. Hip This is formed of the head of the femur interacting with the acetabulum– The articular surface of the acetabulum is a horseshoe – finished by transverse ligament and fibrocartilage labrum.– Fovea of femoral head connects to acetabulum by ligamentum teres. The capsule is attached around acetabulum to the femoral neck, above trochanters.– It is strengthened by 3 ligaments –ischiofemoral, pubofemoral and iliofemoral (this is the strongest Y-shaped which goes from AIIS to intertrochanteric line preventing hyperextension)   Muscles:These are categorized by their actions on the

Upper Limb Anatomy

The upper limb mainly comprises of three main joints – the shoulder, elbow and wrist.   Shoulder This is a synovial ball-and-socket joint. The surface area of the humeral head is 3x that of the glenoid fossa.The capsule is strengthened by coracohumeral ligaments and 3 anterior glenohumeral ligaments.   Muscles:These can be described by the action they cause on the joint. The shoulder is stabalised by the rotator cuff muscles which attach onto greater tuberosity of humerus, expect teres minor (lesser tuberosity) i) Abduction:– Supraspinatus –> provides the initial 15 degrees of abduction, by suprascapular nerve – Deltoid –> From acromion onto

Anatomy of Bones

The long bones that make up the body have a distinct structure, and can be subdivided into many parts: – Bones usually have high levels of compressional and tensile strength, but less torsional strength.   Term Definition Diaphysis The shaft of the bone – This is made up of compact bone which has a dense structure  Epiphysis The end of the bone – This is made up of cancellous/spongy bone. – Made of sheets of trabeculae that branch to form a sponge like network. Epiphyseal line Also known as the growth plate – Separates the Diaphysis and Epiphysis during development

Vasculitis

This is a term used to describe inflammation of the blood vessel walls. It leads to generalised inflammatory symptoms (fever, fatigue, weight loss and myalgia) as well as symptoms according to which organ or tissue is affected secondary to the regional ischaemia.   Large Vessel Vasculitis These conditions involve inflammation of the large arteries like the aorta and its major branches. Temporal (giant cell) Arteritis This is a granulomatous vasculitis involving branches of the carotid artery. This leads to patches of inflammation which “skips” parts of the affected artery. It is the most common vasculitis in adults older than the

Connective Tissue Disorders

Systemic lupus erythematosus (SLE) This is a chronic systemic autoimmune disease, which is classically seen in middle-aged women, particularly in black and Hispanic demographic groups. Whilst the exact cause is unknown, poorly cleared apoptotic debris activates autoimmune lymphocytes leading to the generation of immune complexes. Inadequate clearance (due to deficient complement proteins) means that these immune complexes are deposited in multiple tissues, leading to inflammation. It can also be drug induced, which is associated with higher anti-nuclear antibodies than anti-double stranded DNA antibodies. It typically displays a relapsing and remitting pattern of disease. Symptoms Inflammatory signs – fever, weight loss,

Bone Conditions

Achondroplasia This is the most common cause of dwarfism, which occurs due to a gene mutation in the receptor that converts cartilage to bone during development. It is due to an activating mutation (usually sporadic) in FGF3 (autosomal dominant). This gene is found in chondrocytes and inhibits growth favouring differentiation. Whilst endochondral ossification is affected, there is normal intramembranous bone formation meaning that patients have a normal skull and torso but short limbs. It leads to dwarfism with short limbs but a normal head and chest size.   Symptoms Short limbs with normal head and chest   Management Growth hormone

Arthritis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Osteoarthritis This is a condition where there is progressive degeneration of the articular cartilage. It is a non-inflammatory arthritis which occurs due to “wear and tear” of the joint. It usually affects the hips, knees, and the distal interphalangeal joints of the hand. Risk factors include age, obesity, occupation (e.g., strenuous job) and trauma.   Symptoms Non-inflammatory joint pain (stiffness < 30 minutes), affecting individual joints in a non-symmetrical pattern Joint pain that worsens during the day Joint clicking (crepitus), instability May

Fractures

A fracture is a medical condition where the continuity of the bone is broken. When describing a fracture, it is essential to describe the type and severity of the fracture. Adequate description includes providing information about a number of different categories: Open or closed? Closed fracture = a broken bone with no open wound Open fracture = a broken bone with a break in the skin   Simple or comminuted? Simple = a fracture where the bone is broken into two fragments Comminuted = bone is splintered or crushed into several pieces   Angle of break? Transverse = this is

Small Bowel Conditions

Coeliac disease This is a condition characterised by T cell-mediated damage of the small bowel villi due to gluten exposure, which leads to malabsorption. Gluten is found in wheat and grains and causes reduced mucosal absorption in the distal duodenum +/- proximal jejunum. It is associated with HLA-DQ2 and HLA-DQ8, and onset has a bimodal prevalence pattern, presenting in childhood and again between 50–60 years. If untreated, it can lead to T cell lymphoma of the small intestine.   Symptoms Diarrhoea, bloating, abdominal pain Steatorrhea, weight loss Fatigue and failure to thrive Hyposplenism Anaemia secondary to iron, folate and vitamin

Stomach Conditions

These conditions usually present with epigastric pain. When dealing with stomach conditions you should be aware of the 5 alarm symptoms or age>55years, which require urgent upper GI endoscopy: Anaemia Loss of weight Anorexia Recent onset symptoms Malaena/hematemesis   Acute gastritis This refers acute inflammation of the stomach mucosa, which occurs due to anvimbalance between mucus defence and acid. The stomach is usually lined by bicarbonate ions, prostaglandins and a mucus barrier,vwhich protects against stomach acid. The acid damage results in superficial inflammation and can cause erosions (loss ofvsuperficial layer), which may progress to ulcer development (loss of mucosal layer).

Pancreatic Conditions

Pancreatic cancer This refers to a metastatic proliferation of pancreatic cells. It is usually an adenocarcinoma which arises from the head of the pancreas. It is seen in older patients and usually presents late with established metastases.    Risk factors Smoking, Alcohol Diabetes Chronic pancreatitis Hereditary non-polyposis colorectal carcinoma Multiple endocrine neoplasia Symptoms Painless obstructive jaundice, as the tumour compresses the common bile duct Epigastric pain which may radiate to the back, weight loss, decreased appetite Palpable gallbladder on examination (Courvoisier’s law states that patients with painless jaundice and a palpable gallbladder often have a malignant CBD obstruction)   Complications

Pancreatic Conditions

Pancreatic cancer This refers to a metastatic proliferation of pancreatic cells. It is usually an adenocarcinoma which arises from the head of the pancreas. It is seen in older patients and usually presents late with established metastases.    Risk factors Smoking, Alcohol Diabetes Chronic pancreatitis Hereditary non-polyposis colorectal carcinoma Multiple endocrine neoplasia Symptoms Painless obstructive jaundice, as the tumour compresses the common bile duct Epigastric pain which may radiate to the back, weight loss, decreased appetite Palpable gallbladder on examination (Courvoisier’s law states that patients with painless jaundice and a palpable gallbladder often have a malignant CBD obstruction)   Complications

Oesophageal Conditions

Oesophageal web This is the protrusion of oesophageal mucosa, usually in the upper oesophagus. It is a risk factor for the development of oesophageal squamous cell carcinoma. It is associated with Plummer-Vinson syndrome, a triad of dysphagia, iron deficiency anaemia and oesophageal web.   Symptoms Dysphagia (to solids more than liquids) Can increase risk of aspiration and nasopharyngeal reflux   Management Endoscopic dilation of the oesophagus   Pharyngeal pouch (Zenker diverticulum) This is a pouch at the back of the throat, thought to be due to over-tightening of the cricopharyngeus muscle, causing the pharyngeal mucosa above it to pouch out.

Liver Failure

Acute Liver Failure This term is used to describe an acute decrease in hepatocyte dysfunction.   Causes Drugs, e.g., paracetamol overdose, excess alcohol consumption, medicine reaction Infections, e.g., hepatitis A/B Trauma Symptoms Jaundice due to hyperbilirubinaemia Coagulopathy due to decreased hepatocyte synthetic function Oedema Hepatic encephalopathy   Key tests Liver function tests are not as indicative of the level of hepatic impairment It is more useful to measure albumin levels and prothrombin time (this provides a better assessment of the synthetic function of the liver)   Management Correct underlying cause, e.g., if paracetamol, the antidote is N-acetylcysteine Medical management involves

Inflammatory Bowel Disease

This refers to chronic, relapsing inflammation of the bowel, which is thought to be associated with an abnormal immune response to gut flora. It classically presents in the younger population with two key symptoms: bloody diarrhoea and abdominal pain. It is subdivided into two disorders which share similar symptoms.   Ulcerative colitis (UC) This disease is associated with recurrent inflammation of the colon which involves part or all the colon and rectum. The involvement is continuous, rather than in patches and never proximal to the ileocecal valve. Inflammation leads to bleeding mucosa, pseudopolyp formation and ulcers which extend into the

Hernias

A hernia is the abnormal protrusion of tissue through an opening, which can occur in many different locations. They usually present as a visible lump, with an expansible cough impulse   Risk factors These increase intra-abdominal pressure or weaken the abdominal wall Heavy lifting                            Previous abdominal surgery Constipation                           Obesity   Symptoms Visible lump, with expansible cough impulse They are usually soft, painless, and reducible Complications  Irreducibility/incarceration – this means the contents cannot be pushed back into their original position Obstruction – this refers to hernia containing bowel;

Viral Hepatitis

This is a viral infection of the hepatocytes which leads to inflammation. It can cause acute and chronic symptoms   Acute This refers to inflammation of the liver which usually resolves within 6 months. It causes jaundice (mixed conjugated and unconjugated bilirubin) with dark urine. Also causes fever, tender hepatomegaly, nausea and weight loss. Blood tests show very elevated LFTs (ALT > AST). However, it can be asymptomatic with elevated LFTs.   Chronic This is characterised by elevated LFTs for > 6 months. It may be initially clinically silent, but usually progresses to liver cirrhosis.   Hepatitis A This is

Biliary Conditions

Biliary Colic This is writhing right upper quadrant pain which occurs due to the gallbladder contracting to clear a stone stuck in the cystic duct or gallbladder neck. Pain usually occurs after a fatty meal when the gallbladder contracts to release bile. If left untreated this can lead to inflammation causing acute cholecystitis.   Symptoms Right upper quadrant pain (can radiate to the right shoulder and scapula) Nausea and vomiting No fever or jaundice Key tests Ultrasound to detect stone LFTs are usually within normal limits   Management Small stones can pass spontaneously with resolution of the symptoms If persistent,

Small Bowel Conditions

Coeliac disease This is a condition characterised by T cell-mediated damage of the small bowel villi due to gluten exposure, which leads to malabsorption. Gluten is found in wheat and grains and causes reduced mucosal absorption in the distal duodenum +/- proximal jejunum. It is associated with HLA-DQ2 and HLA-DQ8, and onset has a bimodal prevalence pattern, presenting in childhood and again between 50–60 years. If untreated, it can lead to T cell lymphoma of the small intestine.   Symptoms Diarrhoea, bloating, abdominal pain Steatorrhea, weight loss Fatigue and failure to thrive Hyposplenism Anaemia secondary to iron, folate and vitamin

Biliary Conditions

Biliary Colic This is writhing right upper quadrant pain which occurs due to the gallbladder contracting to clear a stone stuck in the cystic duct or gallbladder neck. Pain usually occurs after a fatty meal when the gallbladder contracts to release bile. If left untreated this can lead to inflammation causing acute cholecystitis.   Symptoms Right upper quadrant pain (can radiate to the right shoulder and scapula) Nausea and vomiting No fever or jaundice Key tests Ultrasound to detect stone LFTs are usually within normal limits   Management Small stones can pass spontaneously with resolution of the symptoms If persistent,

Biliary Conditions

Biliary Colic This is writhing right upper quadrant pain which occurs due to the gallbladder contracting to clear a stone stuck in the cystic duct or gallbladder neck. Pain usually occurs after a fatty meal when the gallbladder contracts to release bile. If left untreated this can lead to inflammation causing acute cholecystitis.   Symptoms Right upper quadrant pain (can radiate to the right shoulder and scapula) Nausea and vomiting No fever or jaundice Key tests Ultrasound to detect stone LFTs are usually within normal limits   Management Small stones can pass spontaneously with resolution of the symptoms If persistent,

Colon Cancer

Colorectal Cancer This refers to a proliferation of cells arising from the colonic or rectal mucosa. An elderly adult with iron deficiency anaemia is at high risk for colorectal cancer and should be investigated further, if clinically appropriate. It can be sporadic, which is associated with random mutations in APC, but is also associated with a host of genetic syndromes.   Symptoms These can present very insidiously so it is very important to screen for red flag symptoms: Altered bowel habit Tenesmus (urge but inability to defecate) Vague abdominal pain – Red flags symptoms – rectal bleeding, weight loss, abdominal

Surgical Conditions

Acute Appendicitis This refers to inflammation of the appendix. It is the most common cause of abdominal surgery in patients, which can occur at any age. It occurs due to obstruction of the lumen commonly due to lymph hyperplasia (seen in children) or a feacolith (seen in adults). Gut organisms then invade the appendix wall leading to oedema, ischaemia, and necrosis. The inflammation irritates visceral fibres initially but then causes localised peritoneal inflammation in the right iliac fossa (RIF).  Symptoms Migrating Periumbilical pain – right iliac fossa Mild fever (37.5-38ºC) and anorexia Infrequent Vomiting Constipation (but diarrhoea can also occur)

The Stomach and Vomiting

The stomach acts as a reservoir for food, aids in digestion and uses acid to kill pathogens that we eat. – Thousands of gastric glands drain into the stomach, giving daily secretions of 2 litres   These gastric glands are composed of two main subsets of glands which have different functions: – Oxyntic glands – contain parietal cells which produce acid-HCl and intrinsic factor (Binds Vit B12) – Chief cells – these secrete pepsinogens and enzymes needed for digestion.   One of the most important features of the stomach is acid production, which is under the control of several factors

Hepatobiliary Physiology

The liver is essential for life and carries out many important functions. It has a specialised arrangement: – It consists of thousands of lobules giving it an organised structure – Blood flows in through the hepatic artery and portal vein inwards towards the hepatic vein via the hepatic sinusoids – Lining the sinusoids are hepatocytes (functional units of the liver) – Between these are bile canaliculi, which help to drain bile outwards. This counter current flow is helpful as it gives a sustained gradient making it easy for cells to secrete substances from the blood to the bile.   The

GI Anatomy

Oesophagus This is the start of the gut tube, which carries food from the pharynx to the stomach. – Squamous epithelium lines the oesophagus and provides a protective barrier against wear and tear. – At the bottom is circular smooth muscle, the lower oesophageal sphincter, supplied by vagus nerve – The oesophagus has several adaptations to prevent the reflux of acid from the stomach, including an aute entry angle into the stomach (Angle of His), mucus folds and the left crus of the diaphragm   Blood supply: Inferior thyroid artery (top third), aortic branches (middle third), left gastric artery (bottom)

Biliary Conditions

Biliary Colic This is writhing right upper quadrant pain which occurs due to the gallbladder contracting to clear a stone stuck in the cystic duct or gallbladder neck. Pain usually occurs after a fatty meal when the gallbladder contracts to release bile. If left untreated this can lead to inflammation causing acute cholecystitis.   Symptoms Right upper quadrant pain (can radiate to the right shoulder and scapula) Nausea and vomiting No fever or jaundice Key tests Ultrasound to detect stone LFTs are usually within normal limits   Management Small stones can pass spontaneously with resolution of the symptoms If persistent,

Chronic Liver Conditions

Primary Sclerosing Cholangitis (PSC) This is a chronic disease characterised by inflammation and scarring of the intrahepatic and extrahepatic bile ducts. Chronic inflammation leads to “onion-skin” fibrosis narrowing the ducts. This can result in strictures, causing a backlog of bile which results in jaundice. Bile is hepatotoxic and progression of the disease leads to liver cirrhosis. It is classically seen in young men and has a strong association with ulcerative colitis.   Symptoms Acute obstructive jaundice due to stricture formation Pruritus, fatigue and RUQ pain Leads to chronic liver failure Increased risk of cholangiocarcinoma Key tests Liver function tests show

Viral Hepatitis

This is a viral infection of the hepatocytes which leads to inflammation. It can cause acute and chronic symptoms   Acute This refers to inflammation of the liver which usually resolves within 6 months. It causes jaundice (mixed conjugated and unconjugated bilirubin) with dark urine. Also causes fever, tender hepatomegaly, nausea and weight loss. Blood tests show very elevated LFTs (ALT > AST). However, it can be asymptomatic with elevated LFTs.   Chronic This is characterised by elevated LFTs for > 6 months. It may be initially clinically silent, but usually progresses to liver cirrhosis.   Hepatitis A This is

Liver Failure

Acute Liver Failure This term is used to describe an acute decrease in hepatocyte dysfunction.   Causes Drugs, e.g., paracetamol overdose, excess alcohol consumption, medicine reaction Infections, e.g., hepatitis A/B Trauma Symptoms Jaundice due to hyperbilirubinaemia Coagulopathy due to decreased hepatocyte synthetic function Oedema Hepatic encephalopathy   Key tests Liver function tests are not as indicative of the level of hepatic impairment It is more useful to measure albumin levels and prothrombin time (this provides a better assessment of the synthetic function of the liver)   Management Correct underlying cause, e.g., if paracetamol, the antidote is N-acetylcysteine Medical management involves

Pancreatic Conditions

Pancreatic cancer This refers to a metastatic proliferation of pancreatic cells. It is usually an adenocarcinoma which arises from the head of the pancreas. It is seen in older patients and usually presents late with established metastases.    Risk factors Smoking, Alcohol Diabetes Chronic pancreatitis Hereditary non-polyposis colorectal carcinoma Multiple endocrine neoplasia Symptoms Painless obstructive jaundice, as the tumour compresses the common bile duct Epigastric pain which may radiate to the back, weight loss, decreased appetite Palpable gallbladder on examination (Courvoisier’s law states that patients with painless jaundice and a palpable gallbladder often have a malignant CBD obstruction)   Complications

Colon Cancer

Colorectal Cancer This refers to a proliferation of cells arising from the colonic or rectal mucosa. An elderly adult with iron deficiency anaemia is at high risk for colorectal cancer and should be investigated further, if clinically appropriate. It can be sporadic, which is associated with random mutations in APC, but is also associated with a host of genetic syndromes.   Symptoms These can present very insidiously so it is very important to screen for red flag symptoms: Altered bowel habit Tenesmus (urge but inability to defecate) Vague abdominal pain – Red flags symptoms – rectal bleeding, weight loss, abdominal

Inflammatory Bowel Disease

This refers to chronic, relapsing inflammation of the bowel, which is thought to be associated with an abnormal immune response to gut flora. It classically presents in the younger population with two key symptoms: bloody diarrhoea and abdominal pain. It is subdivided into two disorders which share similar symptoms.   Ulcerative colitis (UC) This disease is associated with recurrent inflammation of the colon which involves part or all the colon and rectum. The involvement is continuous, rather than in patches and never proximal to the ileocecal valve. Inflammation leads to bleeding mucosa, pseudopolyp formation and ulcers which extend into the

Surgical Conditions

Acute Appendicitis This refers to inflammation of the appendix. It is the most common cause of abdominal surgery in patients, which can occur at any age. It occurs due to obstruction of the lumen commonly due to lymph hyperplasia (seen in children) or a feacolith (seen in adults). Gut organisms then invade the appendix wall leading to oedema, ischaemia, and necrosis. The inflammation irritates visceral fibres initially but then causes localised peritoneal inflammation in the right iliac fossa (RIF).  Symptoms Migrating Periumbilical pain – right iliac fossa Mild fever (37.5-38ºC) and anorexia Infrequent Vomiting Constipation (but diarrhoea can also occur)

Small Bowel Conditions

Coeliac disease This is a condition characterised by T cell-mediated damage of the small bowel villi due to gluten exposure, which leads to malabsorption. Gluten is found in wheat and grains and causes reduced mucosal absorption in the distal duodenum +/- proximal jejunum. It is associated with HLA-DQ2 and HLA-DQ8, and onset has a bimodal prevalence pattern, presenting in childhood and again between 50–60 years. If untreated, it can lead to T cell lymphoma of the small intestine.   Symptoms Diarrhoea, bloating, abdominal pain Steatorrhea, weight loss Fatigue and failure to thrive Hyposplenism Anaemia secondary to iron, folate and vitamin

Hernias

A hernia is the abnormal protrusion of tissue through an opening, which can occur in many different locations. They usually present as a visible lump, with an expansible cough impulse   Risk factors These increase intra-abdominal pressure or weaken the abdominal wall Heavy lifting                            Previous abdominal surgery Constipation                           Obesity   Symptoms Visible lump, with expansible cough impulse They are usually soft, painless, and reducible Complications  Irreducibility/incarceration – this means the contents cannot be pushed back into their original position Obstruction – this refers to hernia containing bowel;

Stomach Conditions

These conditions usually present with epigastric pain. When dealing with stomach conditions you should be aware of the 5 alarm symptoms or age>55years, which require urgent upper GI endoscopy: Anaemia Loss of weight Anorexia Recent onset symptoms Malaena/hematemesis   Acute gastritis This refers acute inflammation of the stomach mucosa, which occurs due to anvimbalance between mucus defence and acid. The stomach is usually lined by bicarbonate ions, prostaglandins and a mucus barrier,vwhich protects against stomach acid. The acid damage results in superficial inflammation and can cause erosions (loss ofvsuperficial layer), which may progress to ulcer development (loss of mucosal layer).

Oesophageal Conditions

Oesophageal web This is the protrusion of oesophageal mucosa, usually in the upper oesophagus. It is a risk factor for the development of oesophageal squamous cell carcinoma. It is associated with Plummer-Vinson syndrome, a triad of dysphagia, iron deficiency anaemia and oesophageal web.   Symptoms Dysphagia (to solids more than liquids) Can increase risk of aspiration and nasopharyngeal reflux   Management Endoscopic dilation of the oesophagus   Pharyngeal pouch (Zenker diverticulum) This is a pouch at the back of the throat, thought to be due to over-tightening of the cricopharyngeus muscle, causing the pharyngeal mucosa above it to pouch out.

Mouth Conditions

Aphthous ulcer This is a painful, superficial ulceration of the oral mucosa, which arises spontaneously and heals without scars Whilst they are usually benign, it is essential to biopsy any ulcer not healing after 3 weeks to exclude malignancy   Symptoms Appears like it has a grey base with surrounding erythema. Tender to touch and pain when eating   Management Most self-resolve spontaneously Can use topical anaesthetic or anti-inflammatory gels (Bongela) for symptomatic relief   Mumps This is an infection due to the mumps virus that causes swelling of the parotid glands. The virus is transmitted by respiratory droplets and

Pulmonary Conditions

Pulmonary Embolus This is an embolus in the pulmonary circulation, which can impair gas transfer. The most common source is from a deep vein thrombosis (DVT) in the leg. Small emboli are usually clinically silent as the lung has a dual blood supply. Large emboli can give rise to pulmonary infarction causing a myriad of symptoms   Risk factors Immobility – especially abdominal or hip/knee surgery, bed rest, long haul flights Thrombophilia – these include blood disorders, e.g., antiphospholipid syndrome, factor V Leiden (the most common inherited thrombophilia) and malignancy Oestrogen – from the contraceptive pill, hormone replacement therapy, pregnancy

Peripheral Vascular Conditions

Varicose Veins This is a condition where the superficial veins become tortuous and enlarged. Usually occurs due to valve insufficiency of the leg vein valves, resulting in venous hypertension and dilation   Risk factors Obesity Family history Pregnancy Oral contraceptive pill   Symptoms Most are asymptomatic and only give cosmetic deformity (e.g., twisted superficial dilated veins) Can occur with aching heavy legs with cramps and itching. However, can lead to oedema and eventual ulcer formation with associated symptoms   Management Only should be referred if pain, ulceration or a severe impact on quality of life (not cosmetic) Non-surgical management –

Pericardium Conditions

The heart is covered in two layers of pericardium: The outer fibrous pericardium is attached to the central tendon of the diaphragm. The serous pericardium is split into an inner visceral layer and outer pericardial layer. Between these layers, there is a space which contains 15–50 mL of pericardial fluid.    Acute pericarditis This refers to acute inflammation of the pericardium, which surrounds the cardiac muscle.   Causes Infections – TB is one of the most common causes worldwide. Viral infections (Coxsackie) Autoimmune – SLE, rheumatoid arthritis etc. Metabolic – anorexia, hypothyroidism, uraemia (causes “fibrinous” pericarditis) Cardiac – post-MI, Dressler’s

Heart Valve Conditions

Rheumatic fever This is a complication after being infected with group A β-haemolytic streptococcus. Antibodies directed against the streptococcus pyogenes M-antigen cross react with myosin and smooth muscle. This leads to a systemic condition which occurs in acute attacks, taking about three months to recover. It can also cause chronic inflammation leading to permanent damage to heart valves. It typically causes stenosis of valves (usually mitral) with a “fish mouth” appearance. Symptoms History of previous streptococcal infection (e.g., pharyngitis) Infective signs – fever and arthralgia Cardiac symptoms (e.g., mitral stenosis) may occur after multiple attacks of RF   Key tests

Ischaemic Heart Disease

Angina This is the term which is used to describe symptomatic chest pain which occurs due to myocardial ischaemia. In the heart, the coronary circulation fills during diastole. Due to atherosclerosis, over time, the coronary arteries become occluded impeding blood flow to the muscle. It means areas of myocardium become ischaemic, especially in times of greater oxygen demand, which leads to chest pain. To counteract this, the body increases sympathetic stimulation which aims to increase cardiac output. But this worsens the issue as it increases O2 demand further. Hence, when treating angina, the main goals are increasing coronary filling by vasodilation,

Central Vascular Conditions

  Hypertension (HTN) This refers to raised arterial blood pressure, usually defined as BP > 140/90 mmHg. It is usually asymptomatic but can produce symptoms if the blood pressure becomes very high. Hypertension can be categorised according to the cause:   Primary This is the most common type which occurs due to an unknown aetiology. It is a chronic condition which often develop around middle age and is known as essential hypertension. Risk factors include male sex, age, race, obesity, salt diet.   Secondary This is HTN which occurs secondary to an identifiable aetiology. It is important to remember that

Diseases of Heart Muscle

Acute myocarditis (Inflammatory cardiomyopathy) This describes acute inflammation of the myocardium. It is most commonly due to a viral infection. The most common virus is Coxsackie A and B (although usually the causal virus is not identified). The most common cause worldwide is Trypanosoma cruzi (Chagas disease). It can also be due to drugs including ethanol, clozapine and doxorubicin. Half of patients recover in a month whereas many go on to develop dilated cardiomyopathy and heart failure.   Symptoms Patients may have signs of a recent viral infection e.g. fever, joint pain, fatigue Disease mirrors acute coronary syndrome e.g. acute

Heart Failure

This is a clinical syndrome consisting of symptoms (e.g., breathlessness, oedema, fatigue) that occurs due to abnormalities in cardiac structure or function, causing inadequate cardiac output or raised intracardiac pressures. Usually, it is due to myocardial dysfunction, but can be due to other causes like valvular disease, pericardial disease or arrhythmias.   Systolic failure This is an inability for the ventricle to contract properly, decreasing cardiac output. In this case, the ejection fraction (EF) is < 40%. It occurs due to conditions which weaken the heart muscle reducing contractility, e.g., ischaemic cardiomyopathy, dilated cardiomyopathy and myocarditis.   Diastolic failure Refers

Heart Valve Conditions

Rheumatic fever This is a complication after being infected with group A β-haemolytic streptococcus. Antibodies directed against the streptococcus pyogenes M-antigen cross react with myosin and smooth muscle. This leads to a systemic condition which occurs in acute attacks, taking about three months to recover. It can also cause chronic inflammation leading to permanent damage to heart valves. It typically causes stenosis of valves (usually mitral) with a “fish mouth” appearance. Symptoms History of previous streptococcal infection (e.g., pharyngitis) Infective signs – fever and arthralgia Cardiac symptoms (e.g., mitral stenosis) may occur after multiple attacks of RF   Key tests

Central Vascular Conditions

  Hypertension (HTN) This refers to raised arterial blood pressure, usually defined as BP > 140/90 mmHg. It is usually asymptomatic but can produce symptoms if the blood pressure becomes very high. Hypertension can be categorised according to the cause:   Primary This is the most common type which occurs due to an unknown aetiology. It is a chronic condition which often develop around middle age and is known as essential hypertension. Risk factors include male sex, age, race, obesity, salt diet.   Secondary This is HTN which occurs secondary to an identifiable aetiology. It is important to remember that

Ischaemic Heart Disease

Angina This is the term which is used to describe symptomatic chest pain which occurs due to myocardial ischaemia. In the heart, the coronary circulation fills during diastole. Due to atherosclerosis, over time, the coronary arteries become occluded impeding blood flow to the muscle. It means areas of myocardium become ischaemic, especially in times of greater oxygen demand, which leads to chest pain. To counteract this, the body increases sympathetic stimulation which aims to increase cardiac output. But this worsens the issue as it increases O2 demand further. Hence, when treating angina, the main goals are increasing coronary filling by vasodilation,

Renal Control of BP

Regulation of Osmolality The body behaves as if its priorities are to maintain ECF osmolality first and then ECF volume. – Osmolality = the concentration of all solutes in a given weight of water  – Low osmolality means the plasma is more dilute than cells –> this will cause water to move into cells giving “water intoxication” causing brain to swell in the skull. – The major determinant of ECF osmolality is NaCl. However, changing NaCl does not affect the osmolality since water follows sodium – Instead ADH adjusts water excretion independently in order to maintain osmolality   The kidney

Peripheral Resistance

In addition to cardiac output, the arterial blood pressure is dependent on the resistance within the circulation. – This is mainly affected by the diameter of the arterioles, which contain smooth muscle in their walls. – The arterioles are capable of constricting and dilating but can be abnormally affected by the presence of atherosclerosis and also which narrow/occlude vessels.   Normal control The arterioles contain a lot of smooth muscle in the tunica media of their walls. – The contractile system of smooth muscle is more complicated as smooth muscle cells do not contain troponin. – An action potential generated

Cardiac Physiology

Heart Basics The cardiovascular system is mainly concerned with maintaining a sufficient arterial blood pressure, in order to ensure adequate supply of oxygen and glucose to vital organs like the brain.   There are many factors which affect arterial blood pressure:   The Heart The heart is the organ responsible for matching cardiac output to venous return. It is myogenic, generating its own beat, with external modulation from the autonomic system. Cardiac Action potential: Phase 0: This is the Na current. It is produced by voltage-gated Na+ channels which give a rapid phase of depolarisation   Phase 1: This transient

Peripheral Vascular Conditions

Varicose Veins This is a condition where the superficial veins become tortuous and enlarged. Usually occurs due to valve insufficiency of the leg vein valves, resulting in venous hypertension and dilation   Risk factors Obesity Family history Pregnancy Oral contraceptive pill   Symptoms Most are asymptomatic and only give cosmetic deformity (e.g., twisted superficial dilated veins) Can occur with aching heavy legs with cramps and itching. However, can lead to oedema and eventual ulcer formation with associated symptoms   Management Only should be referred if pain, ulceration or a severe impact on quality of life (not cosmetic) Non-surgical management –

Central Vascular Conditions

Hypertension (HTN) This refers to raised arterial blood pressure, usually defined as BP > 140/90 mmHg. It is usually asymptomatic but can produce symptoms if the blood pressure becomes very high. Hypertension can be categorised according to the cause:   Primary This is the most common type which occurs due to an unknown aetiology. It is a chronic condition which often develop around middle age and is known as essential hypertension. Risk factors include male sex, age, race, obesity, salt diet.   Secondary This is HTN which occurs secondary to an identifiable aetiology. It is important to remember that these

Pericardium Conditions

The heart is covered in two layers of pericardium: The outer fibrous pericardium is attached to the central tendon of the diaphragm. The serous pericardium is split into an inner visceral layer and outer pericardial layer. Between these layers, there is a space which contains 15–50 mL of pericardial fluid.    Acute pericarditis This refers to acute inflammation of the pericardium, which surrounds the cardiac muscle.   Causes Infections – TB is one of the most common causes worldwide. Viral infections (Coxsackie) Autoimmune – SLE, rheumatoid arthritis etc. Metabolic – anorexia, hypothyroidism, uraemia (causes “fibrinous” pericarditis) Cardiac – post-MI, Dressler’s

Pericardium Conditions

The heart is covered in two layers of pericardium: The outer fibrous pericardium is attached to the central tendon of the diaphragm. The serous pericardium is split into an inner visceral layer and outer pericardial layer. Between these layers, there is a space which contains 15–50 mL of pericardial fluid.    Acute pericarditis This refers to acute inflammation of the pericardium, which surrounds the cardiac muscle. Causes Infections – TB is one of the most common causes worldwide. Viral infections (Coxsackie) Autoimmune – SLE, rheumatoid arthritis etc. Metabolic – anorexia, hypothyroidism, uraemia (causes “fibrinous” pericarditis) Cardiac – post-MI, Dressler’s syndrome

Diseases of Heart Muscle

Acute myocarditis (Inflammatory cardiomyopathy) This describes acute inflammation of the myocardium. It is most commonly due to a viral infection. The most common virus is Coxsackie A and B (although usually the causal virus is not identified). The most common cause worldwide is Trypanosoma cruzi (Chagas disease). It can also be due to drugs including ethanol, clozapine and doxorubicin. Half of patients recover in a month whereas many go on to develop dilated cardiomyopathy and heart failure.   Symptoms Patients may have signs of a recent viral infection e.g. fever, joint pain, fatigue Disease mirrors acute coronary syndrome e.g. acute

Infective Endocarditis

This refers to inflammation of the endocardium that lines the surface of heart valves. It can lead to vegetations on the valve surface that can destroy the valve. In addition, it can lead to septic emboli formation leading to other complications. Causes Staphylococcus aureus This is the most common cause of IE which is usually seen in IV drug abusers It is a high virulence organism that destroys valves, most commonly the tricuspid valve Risk factors for this bacterium include skin breaches (dermatitis, IV lines), kidney failure and diabetes   Viridans Streptococci This is a group of low-virulence bacteria that

Heart Valve Conditions

Rheumatic fever This is a complication after being infected with group A β-haemolytic streptococcus. Antibodies directed against the streptococcus pyogenes M-antigen cross react with myosin and smooth muscle. This leads to a systemic condition which occurs in acute attacks, taking about three months to recover. It can also cause chronic inflammation leading to permanent damage to heart valves. It typically causes stenosis of valves (usually mitral) with a “fish mouth” appearance. Symptoms History of previous streptococcal infection (e.g., pharyngitis) Infective signs – fever and arthralgia Cardiac symptoms (e.g., mitral stenosis) may occur after multiple attacks of RF   Key tests

Heart Failure

This is a clinical syndrome consisting of symptoms (e.g., breathlessness, oedema, fatigue) that occurs due to abnormalities in cardiac structure or function, causing inadequate cardiac output or raised intracardiac pressures. Usually, it is due to myocardial dysfunction, but can be due to other causes like valvular disease, pericardial disease or arrhythmias.   Systolic failure This is an inability for the ventricle to contract properly, decreasing cardiac output. In this case, the ejection fraction (EF) is < 40%. It occurs due to conditions which weaken the heart muscle reducing contractility, e.g., ischaemic cardiomyopathy, dilated cardiomyopathy and myocarditis.   Diastolic failure Refers

Ischaemic Heart Disease

Angina This is the term which is used to describe symptomatic chest pain which occurs due to myocardial ischaemia. In the heart, the coronary circulation fills during diastole. Due to atherosclerosis, over time, the coronary arteries become occluded impeding blood flow to the muscle. It means areas of myocardium become ischaemic, especially in times of greater oxygen demand, which leads to chest pain. To counteract this, the body increases sympathetic stimulation which aims to increase cardiac output. But this worsens the issue as it increases O2 demand further. Hence, when treating angina, the main goals are increasing coronary filling by vasodilation,

Flashes and floaters

Overview Flashes and floaters are a common ophthalmic presentation. Flashes and floaters are common presenting complaints. They can be caused by both benign and potentially sight-threatening pathologies. For this reason, most patients usually warrant a referral to ophthalmology. Flashes Photopsia, or ‘flashes’, refer to the perception of light without an objective stimulus. They may be described as seeing ‘stars’, ‘lightening streaks’ or ‘flashing lights’. They are essentially visual hallucinations of light with geometric-like structures (e.g. triangles, diamonds). The underlying aetiology of ‘true’ flashes is inappropriate stimulation of the optic nerve or the retina. The main mechanism is retinal traction occurring as

Tremor

Overview A tremor is considered involuntary, rhythmic, oscillatory movements of a body part. A tremor is considered the involuntary shaking of a body part. This is classically associated with the hand but can affect other parts of the body. This shaking may be defined as rhythmic, oscillatory movements (i.e. move back and forth) that occur due to alternating or synchronous contractions of opposing muscle groups. Two key terms when describing tremor are frequency and amplitude: Frequency: this is essentially how quick the tremor is, or in other words, the oscillations (back and forth movement) per second. It is measured in cycles per

Syncope

Overview Syncope is a broad term for transient loss of consciousness. Syncope refers to a transient loss of consciousness. The loss of consciousness is usually due to a brief reduction in cerebral perfusion due to an abrupt fall in blood pressure. The loss of consciousness inevitably leads to a collapse with subsequent recovery as perfusion is restored (~8-10 seconds). There are many different causes of syncope of which the most common is vasovagal syncope. Vasovagal syncope is also known as a ‘common faint’ and typically occurs in the setting of a stressful event (e.g. phlebotomy). It is characterised by prodromal symptoms

Headache

Overview Headache is a very common clinical presentation. Headache refers to pain felt in any region of the head, which also includes behind the eyes and ear or in the upper neck. It is an extremely common presentation and can be broadly divided into primary headaches and secondary headaches. Primary headaches: a headache not caused by or attributed to another disorder. In other words, the headache itself is the primary disorder. Examples include tension-type headache, migraine, and cluster headache Secondary headaches: a headache caused by another underlying disorder. In other words, the headache is a symptom of another pathological process. Examples

Back pain

Overview Back pain refers to pain experienced in a patients’ back that is often in the lower regions. Back pain is an extremely common presentation that is estimated to affect a significant proportion of adults at some point during their life. The majority of back pain is felt in the lower lumbar region (known as low back pain) and is usually self-limiting. There are a variety of causes and it is important to be able to differentiate non-specific back (i.e. in the absence of an underlying disorder) from a sinister cause (e.g. discitis, cancer). Location The location of back pain is usually

Jaundice

Overview Jaundice refers to the yellow complexion that occurs from an elevated bilirubin. Jaundice refers to the characteristic clinical finding of yellow discolouration of body tissue, particularly the skin and sclera. This occurs due to an elevation in bilirubin, which is a breakdown product of red blood cells that are taken to the liver to be modified and excreted in the bile. Any disease process that alters the normal metabolism of bilirubin can lead to elevated levels and jaundice. This may be due to increased production or impaired excretion of bilirubin. Clinically, jaundice is not noticeable until the bilirubin level is

Abdominal pain

Overview Abdominal pain is a very common presenting symptom. Abdominal pain is a very common presenting complaint. It can be difficult to comprehend due to the shear volume of conditions that can present with this symptom. The job of any junior doctor, physician associate or advanced nurse practitioner is to take a good history, performance a solid examination and then come up with a synthesised list of possible diagnoses (i.e. the differential diagnosis). Two of the most important things to uncover from the history is the ‘timing of onset’ and the ‘location’. This is because these two factors really help narrow

Pancytopaenia

Overview Pancytopaenia refers to a decrease in all peripheral blood cell lines. Pancytopaenia broadly refers to a decrease in the cell lines of the peripheral blood. It is said to occur when the laboratory values of the three major cell lines are low including red blood cells (RBCs), white blood cells (WBCs), and platelets. Haemoglobin and neutrophils are commonly used are surrogate markers of RBC and WBC lines, respectively. Pancytopaenia is present when: Haemoglobin: < 115 g/L (women), < 130 g/L (men) Leucocytes: < 4.0 x109/L OR Neutrophils: < 1.5 x 109/L Platelets: < 150 x109/L NOTE: the exact values may differ depending

Lymphadenopathy

Overview Lymphadenopathy essentially refers to lymph nodes with abnormal consistency or size. Lymphadenopathy is a very broad term that simply refers to the disease of lymph nodes. The term is used to represent a change in size or consistency of a lymph node. The two most common causes of lymphadenopathy are infection and malignancy. Lymphadenopathy may be peripheral or visceral: Peripheral: lymph nodes located in areas close to the skin that can be palpated when enlarged (e.g. neck, axilla, groin) Visceral: lymph nodes located inside the body at deep locations, usually in association with major organs (e.g. mesenteric lymph nodes, hilar

Flashes and floaters

Overview Flashes and floaters are a common ophthalmic presentation. Flashes and floaters are common presenting complaints. They can be caused by both benign and potentially sight-threatening pathologies. For this reason, most patients usually warrant a referral to ophthalmology. Flashes Photopsia, or ‘flashes’, refer to the perception of light without an objective stimulus. They may be described as seeing ‘stars’, ‘lightening streaks’ or ‘flashing lights’. They are essentially visual hallucinations of light with geometric-like structures (e.g. triangles, diamonds). The underlying aetiology of ‘true’ flashes is inappropriate stimulation of the optic nerve or the retina. The main mechanism is retinal traction occurring

Headache

Overview Headache is a very common clinical presentation. Headache refers to pain felt in any region of the head, which also includes behind the eyes and ear or in the upper neck. It is an extremely common presentation and can be broadly divided into primary headaches and secondary headaches. Primary headaches: a headache not caused by or attributed to another disorder. In other words, the headache itself is the primary disorder. Examples include tension-type headache, migraine, and cluster headache Secondary headaches: a headache caused by another underlying disorder. In other words, the headache is a symptom of another pathological process.

Back pain

Overview Back pain refers to pain experienced in a patients’ back that is often in the lower regions. Back pain is an extremely common presentation that is estimated to affect a significant proportion of adults at some point during their life. The majority of back pain is felt in the lower lumbar region (known as low back pain) and is usually self-limiting. There are a variety of causes and it is important to be able to differentiate non-specific back (i.e. in the absence of an underlying disorder) from a sinister cause (e.g. discitis, cancer). Location The location of back pain

Abdominal pain

Overview Abdominal pain is a very common presenting symptom. Abdominal pain is a very common presenting complaint. It can be difficult to comprehend due to the shear volume of conditions that can present with this symptom. The job of any junior doctor, physician associate or advanced nurse practitioner is to take a good history, performance a solid examination and then come up with a synthesised list of possible diagnoses (i.e. the differential diagnosis). Two of the most important things to uncover from the history is the ‘timing of onset’ and the ‘location’. This is because these two factors really help

Lymphadenopathy

Overview Lymphadenopathy essentially refers to lymph nodes with abnormal consistency or size. Lymphadenopathy is a very broad term that simply refers to the disease of lymph nodes. The term is used to represent a change in size or consistency of a lymph node. The two most common causes of lymphadenopathy are infection and malignancy. Lymphadenopathy may be peripheral or visceral: Peripheral: lymph nodes located in areas close to the skin that can be palpated when enlarged (e.g. neck, axilla, groin) Visceral: lymph nodes located inside the body at deep locations, usually in association with major organs (e.g. mesenteric lymph nodes,