title: [A man with a swelling of the knee].
abstract: A 72-year-old male presented with a dorsomedial swelling of the knee. X-rays showed isolated ossificated cartilage particles. The particles, which were found to be in a popliteal cyst, were surgically removed and analyzed by the pathologist. The diagnosis was synovial osteochondromatosis . Isolated synovial osteochondromatosis inside a popliteal cyst is uncommon.
authors: Spaarne Ziekenhuis, afd. Orthopedie, Hoofddorp. aernoutzuiderbaan@hotmail.com
authors: H Aernout
authors: HA
authors: Zuiderbaan
authors: Arnold
authors: A
authors: Huurnink
authors: Arthur
authors: A
authors: van Noort
mesh_terms: D000368:Aged; D006801:Humans; D007719:Knee Joint / Q000473:pathology* / Q000502:physiology / Q000601:surgery; D008297:Male; D018216:Osteochondromatosis / Q000473:pathology* / Q000601:surgery; D011151:Popliteal Cyst / Q000473:pathology* / Q000601:surgery; D000074402:Synovectomy; D013583:Synovial Membrane / Q000473:pathology*; D016896:Treatment Outcome