title: Pediatric pigmented villonodular synovitis mimicking a septic hip.
abstract: We describe a child with pigmented villonodular synovitis initially treated for a presumed hip infection. The correct diagnosis was not made until 2(1/2) years later on a second admission. This is a rare disease with vague presenting symptoms that requires a high index of suspicion. Magnetic resonance imaging and tissue biopsy are usually needed for a definitive diagnosis. Surgery is the primary treatment option; however, the patient described was unusual in that she did well to date with conservative measures.
authors.affiliation: Division of Rheumatology, School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA 15201, USA. aarat.patel@chp.edu
authors.forename: Aarat M
authors.initials: AM
authors.lastname: Patel
authors.forename: Amanda G
authors.initials: AG
authors.lastname: Brown
authors.forename: Csaba
authors.initials: C
authors.lastname: Galambos
authors.forename: Raphael
authors.initials: R
authors.lastname: Hirsch
mesh_terms: D018771:Arthralgia / Q000209:etiology; D001170:Arthritis, Infectious / Q000175:diagnosis*; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006621:Hip Joint / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D013586:Synovitis, Pigmented Villonodular / Q000473:pathology*