title: Lower back pain and mass in a 13-year-old girl.
authors.affiliation: Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.
authors.forename: E T
authors.initials: ET
authors.lastname: Ricchetti
authors.forename: B
authors.initials: B
authors.lastname: Erol
authors.forename: J
authors.initials: J
authors.lastname: Stern
authors.forename: P
authors.initials: P
authors.lastname: Russo
authors.forename: L
authors.initials: L
authors.lastname: States
authors.forename: J P
authors.initials: JP
authors.lastname: Dormans
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007938:Leukemia / Q000175:diagnosis; D017116:Low Back Pain / Q000209:etiology; D008159:Lumbar Vertebrae; D008175:Lung Neoplasms / Q000556:secondary; D008223:Lymphoma / Q000175:diagnosis; D012516:Osteosarcoma / Q000175:diagnosis; D012208:Rhabdomyosarcoma / Q000175:diagnosis; D012512:Sarcoma, Ewing / Q000150:complications / Q000175:diagnosis* / Q000556:secondary* / Q000628:therapy; D013125:Spinal Neoplasms / Q000150:complications / Q000175:diagnosis*; D016896:Treatment Outcome