title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 35-1991. A 59-year-old man with abdominal pain, microscopic hematuria, and a jejunal abnormality shown on a CT scan.
mesh_terms: D003176:Complement C3 / Q000032:analysis; D003937:Diagnosis, Differential; D006471:Gastrointestinal Hemorrhage / Q000473:pathology; D006801:Humans; D011695:IgA Vasculitis / Q000175:diagnosis / Q000473:pathology*; D007070:Immunoglobulin A / Q000032:analysis; D007413:Intestinal Mucosa / Q000098:blood supply / Q000473:pathology; D007414:Intestinal Neoplasms / Q000175:diagnosis; D007583:Jejunum / Q000473:pathology; D008223:Lymphoma / Q000175:diagnosis; D008297:Male; D008875:Middle Aged
chemical_list: D003176:Complement C3; D007070:Immunoglobulin A