Incidence and Mortality
Estimated new cases and deaths from anal, anal canal, and anorectal cancer in the United States in 2013:
New cases: 7,060.
Anal cancer is usually curable. The three major prognostic factors are site (anal canal vs. perianal skin), size (primary tumors <2 cm in size have better prognoses), and nodal status.
Anal cancer is an uncommon malignancy and accounts for only a small percentage (4%) of all cancers of the lower alimentary tract...