title: Primary carcinoid and carcinoma of the rectum occurring simultaneously: report of a case.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000473:pathology; D001344:Autopsy; D002276:Carcinoid Tumor / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000473:pathology; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology