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. Author manuscript; available in PMC: 2019 May 21.
Published in final edited form as: Mod Pathol. 2018 Nov 21;32(5):609–620. doi: 10.1038/s41379-018-0175-7

Figure 4.

Figure 4.

Representative H&E and immunophenotype of the sarcomas with novel fusions.

A-C: Soft tissue myoepithelial tumor shows epithelioid to plasmacytoid cells in aggregates in a myxoid background with scattered areas showing distinct gland formation. The tumor is strongly and diffusely positive for Pan-CK and S100 by IHC. (A: 200x, B-C: 400x)

D-E: Perivascular epithelioid cell tumor (PEComa) in the pancreas. The tumor is well circumscribed at the periphery and demonstrates large polygonal cells with eosinophilic to clear cytoplasm. (D: 200x, E: 400x)

F-G: Pseudomyogenic hemangioendothelioma composed of spindle cells with moderate amount of eosinophilic cytoplasm and is positive for ERG immunostain. (400x)

H-J: Rhabdomyosarcoma (FUS-TFCP2) arising in the maxillary gingiva demonstrating monomorphic oval to spindle cells in an inflammatory background. The tumor is strongly positive for MyoD1 by IHC. (H: 200x, I-J: 400x)