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Giant Synovial Chondromatosis of the Knee Mimicking a Parosteal Osteosarcoma: A Case Report

방골성 골육종과 유사한 슬관절의 거대 활막 연골증식증

  • Kang, Chang-Ho (Department of Radiology, Korea University Anam Hospital) ;
  • Park, Jong-Hoon (Department of Orthopedic Surgery, Korea University Anam Hospital) ;
  • Lee, Dae-Hee (Department of Orthopedic Surgery, Korea University Anam Hospital) ;
  • Kim, Chul-Hwan (Department of Pathology, Korea University Anam Hospital) ;
  • Park, Jeong-Mi (Department of Radiology, Catholic University St. Mary's Hospital) ;
  • Lee, Won-Seok (Department of Orthopedic Surgery, Korea University Anam Hospital)
  • 강창호 (고려대학교 안암병원 영상의학과) ;
  • 박종훈 (고려대학교 안암병원 정형외과) ;
  • 이대희 (고려대학교 안암병원 정형외과) ;
  • 김철환 (고려대학교 안암병원 병리과) ;
  • 박정미 (가톨릭대학교 의과대학 영상의학교실) ;
  • 이원석 (고려대학교 안암병원 정형외과)
  • Received : 2010.09.30
  • Accepted : 2010.11.30
  • Published : 2010.12.30

Abstract

Synovial chondromatosis is a benign nodular cartilaginous proliferation arising in the synovium of joints. The radiolographic 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.

활액막성 연골종증은 관절 활액막으로부터 기원하는 증식성의 결절성 연골성 양성 종양이다. 영상의학적 소견은 다양하게 나타나는데 드물게 연골육종, 골육종 그리고 활액 육종과 같은 악성 종양과의 감별을 요하는 수가 있다. 저자들은 컴퓨터 단층 촬영에서는 관절 내 다 발성의 연골성 무기질침착이 뚜렷한 종괴로 인해 활액막성 연골종증을 예상할 수 있으나, 단순 방사선 소견 상 피질골에 근접하고 균질한 방사선비투과의 모습을 보여 방골성 골육종과 유사해 보이는 근위 경골의 후면에 발생한 원발성 활액막성 연골종증 1예를 보고한다.

Keywords

References

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Cited by

  1. Solitary synovial osteochondroma of the knee: mimicking a giant loose body vol.5, pp.None, 2010, https://doi.org/10.2147/imcrj.s35894