Lin Yu-Ching, Goldsmith Jeffrey D, Gebhardt Mark G, Wu Jim S
Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Keelung, Taiwan,
Skeletal Radiol. 2014 Jul;43(7):997-1000. doi: 10.1007/s00256-014-1821-x. Epub 2014 Jan 24.
Osteochondroma is a common tumor of the bone and can be complicated by adventitial bursa formation and malignant transformation of the cartilaginous cap. Synovial chondromatosis formation within these bursae is extremely rare and can be confused with malignant transformation of the osteochondroma cap to a chondrosarcoma. We describe a case of extra-articular synovial chondromatosis formation several years following osteochondroma resection. Cartilage nodule formation within the bursal synovial lining and proliferation of cartilage debris shed from the cartilaginous cap during surgery or biopsy are potential etiologies of this rare complication of osteochondromas.
骨软骨瘤是一种常见的骨肿瘤,可并发滑囊形成和软骨帽的恶性转化。这些滑囊内形成滑膜软骨瘤病极为罕见,可能会与骨软骨瘤帽向软骨肉瘤的恶性转化相混淆。我们描述了一例在骨软骨瘤切除术后数年发生的关节外滑膜软骨瘤病形成的病例。滑囊滑膜内衬内的软骨结节形成以及手术或活检期间从软骨帽脱落的软骨碎片增殖是骨软骨瘤这种罕见并发症的潜在病因。