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Pigmented villonodular synovitis - Knee - Photomicrograph
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Pigmented villonodular synovitis - Knee - Photomicrograph
  • Case ID: 407
  • Diagnosis: Pigmented villonodular synovitis
  • Category: Soft Tissue Tumors
  • Category Type: Pigmented villonodular synovitis
  • Category Sub Type: Benign
  • Location: Knee
  • Age: 41
  • Sex: F
  • Treatment: Synovectomy
  • Image ID: 2752
  • Image Type: Photomicrograph
  • Images relating to this case: 2749 , 2750 , 2751 , 2752.

This low power photomicrograph taken from the synovial tissue shows extensive histiocytic proliferation within the subsynovial tissue with many large giant cells and occasional hemosiderin deposits. From this tissue, the pathologist felt secure in his diagnosis of profuse synovial pigmented villonodular synovitis.


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