Abstract

Fifty four year-old men with a family history of colon cancer diagnosed multiple colonic poliposis upon colonoscopy. Since pathology of colonic biopsy yielded adenocarcinoma, together with a family history of colon cancer, total colectomy was done. Histopathology of colectomy showed multisentric colonic adenocarcinoma together with grade 1 neuroendocrine tumor of the appendix. Our patient was unique because of the rarity of the coincidence of colonic adenocarcinoma and appendix neuroendocrine tumor.