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- Which one of the following is true about Barret`s esophagus?
- A biopsy will show a histological finding of columnar to squamous metaplasia
- It is a known precursor of adenocarcinoma of the esophagus
- It is a known precursor of carcinoma of the stomach
- It is a known precursor of squamous cell carcinoma of the esophagus
- The most common location is in the proximal (upper) third of esophagus
- 83 years old man with anemia, weight loss and dysphagia. Endoscopy revealed a large polypoid and ulcerated lesion in mid- esophagus. The MOST LIKELY diagnosis is:
- transitional cell carcinoma
- adenocarcinoma
- squamous papiloma
- leiomyosarcoma
- squamous cell carcinoma
- 6 years old girl with chronic diarrhea, distended abdomen and anemia. She was diagnosed with Celiac disease. Which one of the following is a feature of the disease?
- derange immunological reactivity to milk protein
- marked villous atrophy in biopsy
- primarily distal involvement
- increase risk of colon carcinoma
- numerous intraepithelial eosinophils in biopsy
- Which type of esophagitis is the most common?
- gastroesophgeal reflux
- viral infection
- fungal infection
- acute corrosive
- chronic granulomatus
- The organism that causes chronic non-specific gastritis and peptic ulcers is:
- Clostridium difficile
- Streptococci
- E.coli
- H.pylori
- Trypanosoma cruzi
- Segmental involvement of the small intestine and transmural granulomatosis is seen in:
- Crohn`s disease
- Meckel`s diverticulum
- ulcerative colitis
- ameobic colitis
- Whipple`s disease
- The most common site for carcinoid tumor is:
- small bowel
- colon
- appendix
- esophagus
- stomach
- Wich colorectal polyp is considered to be non-neoplastic?
- tubuvillous adenoma
- villous adenoma
- the polyp of familial adenomatous polyposis
- hyperplastic polyp
- leimyoma
- Feature of colonic adenomas that are associated with an increased risk of carcinoma includes all of following except:
- sever dysplasia
- villous architecture
- size exceeding 2 cm
- marked inflammation
- multiple adenomas
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