Malignant lymphoma and adenocarcinoma of the rectum.
D000230:Adenocarcinoma; D000368:Aged; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D008223:Lymphoma / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*