Article
Nonvisceral YAP1::TFE3- Rearranged Inflammatory Spindle Cell PEComa in Somatic Soft Tissue : Clinicopathologic and Molecular Analysis of 3 Cases.
The American journal of surgical pathology - 1 Apr 2026
Malik Abdalla, Zhang Gloria, Fritchie Karen, Dermawan Josephine K
Abstract excerpt
Inflammatory spindle cell PEComa is a rare PEComa variant with rare cases harboring YAP1::TFE3 fusion recently reported in the lungs. These tumors share identical YAP1::TFE3 fusion breakpoints and overlapping morphology with clear cell stromal tumor of the lung ( CCST-L ), but differ by demonstrating a myomelanocytic immunophenotype. We report the first 3 nonvisceral cases of inflammatory spindle cell PEComa with...
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