title: [What is your diagnosis? A 3-month-old infant with a protruding ear].
authors.affiliation: Servicio de Hemato-Oncología, Hospital Universitario Niño Jesús, Madrid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Ruiz Bermejo
authors.forename: A
authors.initials: A
authors.lastname: Lassaletta Atienza
authors.forename: J A
authors.initials: JA
authors.lastname: Blumenfeld Olivares
authors.forename: E
authors.initials: E
authors.lastname: Cañedo Villarroya
authors.forename: L
authors.initials: L
authors.lastname: Madero López
mesh_terms: D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D008297:Male; D008416:Mastoid