title: Unusual histiocytic tumor of the small intestine.
abstract: A case of unusual sarcoma of the small intestine is described. Ultrastructural observation, enzyme histochemical studies, and functional analysis, such as phagocytic capacity and surface markers, were helpful in defining the neoplastic cells as histiocytes. Autopsy findings are presented.
mesh_terms: D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007078:Ileal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D007082:Ileum / Q000473:pathology; D008297:Male; D008875:Middle Aged