title: Giant extra-articular synovial osteochondromatosis of the sinus tarsi: a case report.
abstract: A 32-year-old male presented with painful swelling of the sinus tarsi that occurred during daily activities. Diagnostic imaging suggested the presence of a large synovial osteochondromatosis that blocked subtalar motion with deformity of the adjacent bone. The large bony mass was excised, and normal subtalar motion was achieved.
authors: Department of Orthopaedic Surgery, Jeju National University College of Medicine, Jeju, Korea.
authors: Sang Rim
authors: SR
authors: Kim
authors: Sung Jin
authors: SJ
authors: Shin
authors: Kyu Bum
authors: KB
authors: Seo
authors: Chen Tai
authors: CT
authors: Teong
authors: Chang Lim
authors: CL
authors: Hyun
mesh_terms: D000328:Adult; D002111:Calcaneus / Q000473:pathology / Q000601:surgery*; D015838:Chondromatosis, Synovial / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D008297:Male; D016059:Range of Motion, Articular / Q000502:physiology; D013380:Subtalar Joint / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D013628:Talus / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed