Original Article
Synovial chondrosarcoma arising from synovial chondromatosis of the knee
Authors:
MS Yao ,
Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei
CM Chang,
Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
CL Chen,
Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
WP Chan
Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
Abstract
We report the case of a 51-year-old woman who had suffered from right knee pain and stiffness for 40 years. Her symptoms had gradually worsened over the past 5 years. One year previously, when she first visited our clinic, plain radiographs and CT scan images had revealed synovial chondromatosis over the right knee. At the current admission, follow-up MRI showed synovial masses around the knee and worsening of endosteal cortical scalloping in the patella, femoral condyle, and tibial plateau. After diagnosis on the basis of frozen sections, the patient had total excision of the lesions and total knee athroplasty. Histological examination revealed synovial chondromatosis in the joint cavity and grade 1 chondrosarcoma invasion into the adjacent bone. In long-standing synovial chondromatosis, presentation with aggravated symptoms and deterioration on imaging findings should alert clinicians to the potential for malignant change.
How to Cite:
Yao M, Chang C, Chen C, Chan W. Synovial chondrosarcoma arising from synovial chondromatosis of the knee. Journal of the Belgian Society of Radiology. 2012;95(6):360–2. DOI: http://doi.org/10.5334/jbr-btr.723
Published on
01 Nov 2012.
Peer Reviewed
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