the GASTROLAB Endoscopy Picture Archives

Rectal Polyps


High resolution image: A rectal tubular adenoma


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Rectal adenomas

Rectal polyps are of two kinds, hyperplastic without any malignant potential, and adenomas, which can transform into rectal cancer with time if not removed. The polyps in these pictures are adenomas and should be removed.

Large tubulovillous adenoma in the rectum

A lesion like this cannot macroscopically be considered benign. The biopsies taken during colonoscopy can be benign, and the carcinomatous changes will be found in the surgical specimen. However, the lesion seen in this picture was a large benign tubulovillous adenoma.


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A quite large tubulovillous adenoma. A lobulated polyp like this cannot be considered benign until removed and examined.

A small but malignant polyp

This polyp with a diameter of about 2 centimeters was malignant, although it looks quite innocent.


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Small tubular adenomas

Small adenomas like these should be removed as they have a malignant potential.


High resolution image: A rectal tubular adenoma removed by endoscopic polypectomy

Rectal Tubulovillous adenoma:

Endoscopy Slide Show:
Rectal Tubulovillous Adenoma:


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