Presentation
Left foot swelling.
Patient Data
Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
A soft tissue opacity is seen at the anteromedial aspect of the left foot.
Soft tissue lesion is noted mainly at the anteromedial aspect of the ankle with erosion of underlying tarsal bones. It shows low signal intensity on T1 and STIR.
Intraoperative photo.
Case Discussion
MR images demonstrate Pigmented villonodular synovitis (PVNS) involving the ankle and foot.
These images are from Dr. John Hunter's amazing MSK collection. Dr. John Hunter is a professor in the department of radiology (musculoskeletal section) at UC Davis School of Medicine.
This case was donated to Radiopaedia.org by Radswiki.net.
Editor's note: Per the 2020 WHO Soft Tissue and Bone Tumors Classification (5th ed.), the recommended terminology is tenosynovial giant cell tumor with pigmented villonodular synovitis no longer recommended (although remains in common use).
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