The ability to accurately locate a polyp found on computed tomographic colonography (CTC) at subsequent optical colonoscopy (OC) is an important task in colorectal cancer screening. We present a ...

Ulcerative colitis is an inflammatory bowel disease in which the inner lining of the large intestine and rectum become inflamed. It is characterized by diarrhea, abdominal pain and blood in the stool.

Passage of the colonoscope to the caecum, careful inspection of the mucosal surface during withdrawal, and safe removal of colonic polyps are the main aims of colonoscopy.