title: A 2-year-old girl with right hip pain.
authors.affiliation: Department of Pediatrics, Taipei Veterans General Hospital, National Yang-Ming University, Taiwan.
authors.forename: Chun-Jen
authors.initials: CJ
authors.lastname: Chen
authors.forename: Ching-Yuang
authors.initials: CY
authors.lastname: Lin
mesh_terms: D002675:Child, Preschool; D005260:Female; D006615:Hip; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis*; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging* / Q000473:pathology; D010146:Pain / Q000209:etiology*; D011859:Radiography