title: Colonic bull's-eye lesions in histiocytosis X.
abstract: A 27-year-old woman with known pulmonary, cutaneous and osseous histiocytosis X presented with vague abdominal pain. Double-contrast barium enema examination revealed multiple colonic bull's-eye lesions. Biopsy showed histiocytic infiltration similar to that already described at other sites in this patient (the lungs and bone). To the authors' knowledge, this case represents the first radiologic description of this manifestation of histiocytosis X. Though rare, it should be considered in the differential diagnosis of colonic bull's-eye lesions.
authors.affiliation: Département de radiologie, Hôpital Saint-François d'Assise, Québec.
authors.forename: M
authors.initials: M
authors.lastname: Rioux
authors.forename: F
authors.initials: F
authors.lastname: Trottier
authors.forename: J
authors.initials: J
authors.lastname: Rodrigue
mesh_terms: D000328:Adult; D001466:Barium Sulfate; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D004733:Enema; D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008168:Lung / Q000648:ultrastructure; D008854:Microscopy, Electron; D011859:Radiography
chemical_list: D001466:Barium Sulfate