title: "Atypical" eosinophil granuloma (description of two cases).
abstract: Two cases of histiocytosis X are reported. One affected a single bone, the other several bones. Both had the usual radiographic appearances, but a somewhat alarming cytological picture. The differential diagnosis between benign proliferative conditions and those possessing malignant or pseudo-malignant characteristics therefore demanded very careful consideration. After discussion of the radiological and histiocytological data, the diagnosis off histiocytosis X was arrived at, and in view of the favourable results, we are inclined to the view that these were atypical cases of eosinophilic granuloma.
mesh_terms: D001859:Bone Neoplasms / Q000175:diagnosis*; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004803:Eosinophilic Granuloma / Q000175:diagnosis*; D005360:Fibula / Q000000981:diagnostic imaging; D006644:Histiocytes / Q000473:pathology; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis*; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging / Q000473:pathology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging / Q000473:pathology; D013977:Tibia / Q000000981:diagnostic imaging