Colorectal polyp

Colon polyps
Polyp of sigmoid colon as revealed by colonoscopy. Approximately 1 cm in diameter. The polyp was removed by snare cautery.
Specialty	Gastroenterology

A colorectal polyp is a polyp (fleshy growth) occurring on the lining of the colon or rectum.^[1] Untreated colorectal polyps can develop into colorectal cancer.^[2]

Colorectal polyps are often classified by their behaviour (i.e. benign vs. malignant) or cause (e.g. as a consequence of inflammatory bowel disease). They may be benign (e.g. hyperplastic polyp), pre-malignant (e.g. tubular adenoma) or malignant (e.g. colorectal adenocarcinoma).