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KMID : 0613320100160020095
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Journal of the Korean Bone and Joint Tumor Soceity
2010 Volume.16 No. 2 p.95 ~ p.98
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Giant Synovial Chondromatosis of the Knee Mimicking a Parosteal Osteosarcoma: A Case Report
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Kang Chang-Ho
Park Jong-Hoon
Lee Dae-Hee
Kim Chul-Hwan
Park Jeong-Mi
Lee Won-Seok
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Abstract
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Synovial chondromatosis is a benign nodular cartilaginous proliferation arising in the synovium of joints. The adiolographic features of this condition are variable. Rarely, it would be confused with malignancy such as chondrosarcoma, osteosarcoma or synovial sarcoma. We report a case of primary synovial chondromatosis of the posterior aspect of the proximal tibia mimicking a parosteal osteoarcoma on the radiography, which showed a homogeneously radiopaque juxtacortical mass. However, subsequent computed tomography (CT) showed multiple intra-articular masses containing chondroid mineralization, suggesting synovial chondromatosis.
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KEYWORD
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synovial chondromatosis, parosteal osteosarcoma, diagnostic imaging
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