Giant Cell Poor Extra-Articular Diffuse-Type Tenosynovial Giant Cell Tumor With Extensive Desmin Expression: A Potential Diagnostic Pitfall With Cytogenetic …

L Lopez, K Schoedel, I John - International Journal of …, 2019 - journals.sagepub.com
L Lopez, K Schoedel, I John
International Journal of Surgical Pathology, 2019journals.sagepub.com
Diffuse-type tenosynovial giant cell tumor can rarely present as an entirely extra-articular
mass, which can be misdiagnosed as a sarcoma especially when giant cells are absent,
dominated by large dendritic mononuclear cells, and desmin expression is extensive. …
The intra-articular form of DTGCT, previously referred to as pigmented villonodular
tenosynovitis, is well characterized and generally does not represent a diagnostic challenge.
However, the more unusual extra-articular form defined by Enzinger and Weiss as the …
Diffuse-type tenosynovial giant cell tumor can rarely present as an entirely extra-articular mass, which can be misdiagnosed as a sarcoma especially when giant cells are absent, dominated by large dendritic mononuclear cells, and desmin expression is extensive.
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