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Pigmented villonodular synovitis, nodular form - Knee - Photograph
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Pigmented villonodular synovitis, nodular form - Knee - Photograph
  • Case ID: 410
  • Diagnosis: Pigmented villonodular synovitis, nodular form
  • Category: Soft Tissue Tumors
  • Category Type: Pigmented villonodular synovitis
  • Category Sub Type: Benign
  • Location: Knee
  • Age: 17
  • Sex: M
  • Treatment: Resection
  • Image ID: 2761
  • Image Type: Photograph
  • Images relating to this case: 2758 , 2759 , 2760 , 2761, 2762 .

This patient was taken to the operating room and through an anterior arthrotomy approach a hypertrophic, tan, nodular lesion could be seen growing off the synovial lining in the anterior aspect of the knee joint. It looks like a mushroom with some small hemorrhagic cysts on the surface, the typical appearance of the nodular or localized form of PVNS. The remaining portion of the synovial lining appeared normal and so a subtotal synovectomy was not necessary. A chance for local recurrence following this type of resection is very low compared to the more generalized, diffuse form of the PVNS.


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