bronchoscopy

A bronchoscopy is a test to look at the inside of the breathing tubes (airways) in your lungs. You might have this test to allow your doctor to: look for the cause of your symptoms help your doctor see any areas that look abnormal on an x-ray or scans take samples of cells These samples might be a tissue sample called a biopsy. Or your doctor might take some cells by using a small brush or using a liquid to collect them. To have the test your doctor puts a narrow, flexible tube called a bronchoscope down your windpipe (trachea)