title: Case report 817: Synovial chondrosarcoma secondary to synovial chondromatosis.
abstract: A case of prolonged history of synovial chondromatosis of the knee joint that transformed into low-grade chondrosarcoma was reported. The pathological differentiation of this rare entity from synovial chondromatosis has been discussed, as have the radiographic appearance and differential diagnosis.
authors.affiliation: Department of Orthopaedics, Mount Sinai Medical School, New York, New York.
authors.forename: S
authors.initials: S
authors.lastname: Kenan
authors.forename: I F
authors.initials: IF
authors.lastname: Abdelwahab
authors.forename: M J
authors.initials: MJ
authors.lastname: Klein
authors.forename: M M
authors.initials: MM
authors.lastname: Lewis
mesh_terms: D000368:Aged; D015838:Chondromatosis, Synovial / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D002813:Chondrosarcoma / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D011859:Radiography; D013583:Synovial Membrane / Q000473:pathology