title: Barytoma of the rectum.
abstract: Two cases of barytoma of the rectum in a 33-year-old female and an 81-year-old male are presented. The cases were detected 4 1/2 and 3 months, respectively, after a barium enema. The morphologic, histochemical and radiologic findings are described. The pathogenesis and the differential diagnosis are then discussed in the light of the literature.
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate / Q000009:adverse effects* / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D006099:Granuloma / Q000139:chemically induced* / Q000473:pathology; D006651:Histocytochemistry; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D008264:Macrophages / Q000378:metabolism / Q000473:pathology; D008297:Male; D012002:Rectal Diseases / Q000139:chemically induced* / Q000473:pathology; D012004:Rectal Neoplasms / Q000473:pathology
chemical_list: D001466:Barium Sulfate