title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 22-1980.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis / Q000473:pathology*; D008297:Male; D008643:Mesentery; D008875:Middle Aged; D009379:Neoplasms, Muscle Tissue / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000175:diagnosis / Q000473:pathology; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000473:pathology*; D014463:Ultrasonography