Carcinoma of the sigmoid metastasizing to the anus by the mucosal route.
D001003:Anal Canal; D001005:Anus Neoplasms; D002277:Carcinoma; D012809:Colon, Sigmoid; D003110:Colonic Neoplasms; D006801:Humans
ANUS/neoplasms; COLON/neoplasms