NCIt synonyms : Extramucosal (Perianal) Adenocarcinoma of the Anus; Extramucosal (Perianal) Adenocarcinoma of Anus; Anal Extramucosal Perianal Adenocarcinoma;
NCIt definition : An anal adenocarcinoma arising from the lining of an anorectal fistulous tract or
the anal glands. The overlying anal mucosa does not show evidence of neoplastic changes.
It usually presents as a submucosal tumor.;