Case Report

A Rare Case of Multifocal Asynchronous Benign Granular Cell Tumors with PIK3CA Subclonal Mutation Identified in One Tumor by Next-Generation Sequencing

Figure 1

Granular cell tumor. Histological sections of the tumor with H&E stain (a) and immunohistochemical stains positive for S-100 (b), inhibin (c), and SOX10 (d), negative for CD163 (e), and low Ki-67 proliferative index (f). All .
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(b)
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