Giant cell tumor of tendon sheath

Discussion:

MRI reveals a heterogeneous soft tissue SOL closely associated with the extensor digitorum longus involving the brevis tendons, with dark intralesional signals on GRE : These findings represent Giant cell tumor of the tendon sheath (GCTTS), also known as Pigmented villonodular tumor of the tendon sheath (PVNTS).

Excision biopsy performed and diagnosis confirmed on histopathology.

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