Fig. 1: Examples of histologic spectrum and immunophenotype of SNTMM. | Modern Pathology

Fig. 1: Examples of histologic spectrum and immunophenotype of SNTMM.

From: Alterations in key signaling pathways in sinonasal tract melanoma. A molecular genetics and immunohistochemical study of 90 cases and comprehensive review of the literature

Fig. 1

A Tumor composed of uniform rounded cells with prominent nucleoli. B A spindle cell variant with scant collagenous matrix. C An epithelioid tumor with pigmentation. D Prominent nuclear expression of SOX10 seen in 99% (88/89) of cases.

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