title: Pigmented villonodular synovitis of the knee in a patient with Paget's disease of the adjacent femoral bone.
abstract: A 49-year-old male patient, diagnosed as having Paget's disease involving the lumbar vertebrae and both femora, felt persistent pain and swelling in the left knee after trauma. A synovectomy was performed. Clinical and histological findings led to the diagnosis of pigmented villonodular synovitis of the knee joint. Only one previous case of this association has been reported. A common aetiology for both diseases is discussed, and traumatic factors should be considered in the aetiology of the association.
authors.affiliation: Section of Rheumatology, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Marsal
authors.forename: C
authors.initials: C
authors.lastname: Arnal
authors.forename: F
authors.initials: F
authors.lastname: Garcia
authors.forename: L
authors.initials: L
authors.lastname: Azorin
authors.forename: E
authors.initials: E
authors.lastname: Lience
mesh_terms: D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology* / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D010001:Osteitis Deformans / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D013586:Synovitis, Pigmented Villonodular / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology