MSD Manual

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Colorectal Cancer
Colorectal Cancer
Colorectal Cancer

A polyp is a growth of tissue from the intestinal or rectal wall that protrudes into the intestine (top circle) or rectum and may be noncancerous (benign) or cancerous (malignant). Cancers of the rectum develop from the lining of the rectum (bottom circle).

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Colorectal Cancer