title: Histiocytosis X: solitary localization in the sternum of a 2-year-old child.
mesh_terms: D001847:Bone Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D002675:Child, Preschool; D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D011859:Radiography; D013249:Sternum