It is also known as pigmented villonodular tumor of the tendon sheath (PVNTS) or extra-articular pigmented villonodular tumor of the tendon sheath.
MRI
Not surprisingly, given the histological similarity to PVNS, giant cell tumors of the tendon sheaths also share the same finding on MRI, mainly on account of hemosiderin accumulation.
Signal characteristics include
-
T1 -
- low signal
- variable enhancement
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T2 - low signal