title: Case records of the Massachusetts General Hospital. Weekly Clinicopathological exercises. Case 15-1993. A 58-year-old man with recurrent lower gastrointestinal bleeding for over two years.
mesh_terms: D003937:Diagnosis, Differential; D006471:Gastrointestinal Hemorrhage / Q000473:pathology*; D006801:Humans; D007078:Ileal Neoplasms / Q000473:pathology*; D007889:Leiomyoma / Q000473:pathology*; D007890:Leiomyosarcoma / Q000473:pathology; D008297:Male; D008875:Middle Aged