title: Primary synovial chondromatosis of the subtalar joint affecting two brothers.
abstract: Primary synovial chondromatosis is a rare benign condition characterized by the formation of multiple cartilaginous nodules in the synovium of joints and on occasions tendon sheaths or bursae. A case of primary synovial chondromatosis affecting the subtalar joint is reported. The patient's brother developed the same condition affecting the same joint 2 years later. The proposed etiologies are discussed including the presence of the proto-oncogene C-erb B-2.
authors.affiliation: Orthopaedic Registrar Westmead Hospital, New South Wales, Australia. office@orthosports.com.au
authors.forename: Richard
authors.initials: R
authors.lastname: Hocking
authors.forename: John
authors.initials: J
authors.lastname: Negrine
mesh_terms: D000293:Adolescent; D001174:Arthrodesis; D015838:Chondromatosis, Synovial / Q000235:genetics* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D000090063:Proto-Oncogene Mas; D011519:Proto-Oncogenes; D013380:Subtalar Joint / Q000473:pathology / Q000601:surgery