TY - CHAP M1 - Book, Section TI - Anal Canal Cancer A1 - Doherty, Gerard M. PY - 2010 T2 - Quick Answers Surgery AB - • Account for 1.5% of GI tract cancers• Usually long history of perianal complaints• Disease may be quite extensive at presentation• Associated with chronic anal infection (human papillomavirus)• Tumors anatomically found from the upper to lower border of the internal anal sphincter, 6-12 mm above dentate line• Referred to as epidermoid carcinoma SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accesssurgery.mhmedical.com/content.aspx?aid=58091991 ER -