Cancer Treatment and Health Care

The anal canal extends from the rectum to the perianal skin, and is lined by a mucous membrane that covers the internal sphincter. Below is a classification system for anal canal cancer has been described by the American Joint Committee on Cancer (AJCC by its acronym in English) and the International Union Against Cancer. Margin tumors anal (located below the anal verge and involving the perianal skin with hair) are classified with skin tumors.

TNM Definitions
Primary tumor (T)

TX: Can not evaluate the primary tumor
T0: No evidence of primary tumor
Tis: Carcinoma in situ
T1: Tumor 2 cm or less in greatest dimension Read the rest of this entry »