[Rare tumors of the rectum and the anus].
D001005:Anus Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000175:diagnosis*
Seltenere Tumoren des Rektums und Anus.