Anal cancer overview
Anal cancer Microchapters |
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Anal cancer overview On the Web |
American Roentgen Ray Society Images of Anal cancer overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Anal cancer is a type of cancer which arises from the anus, the distal orifice of the gastrointestinal tract. It is a distinct entity from the more common colorectal cancer. The etiology, risk factors, clinical progression, staging, and treatment are all different. Anal cancer is typically a squamous cell carcinoma that arises near the squamocolumnar junction.