PMC6546945_01
Gross findings, microscopic findings, and immunohistochemical findings of specimen: (A) the mass consisted of multiple nodules and measured about 2 cm in its greatest diameter; (B) surface of cross-section was characteristically whitish-yellow and very smooth; (C) the lesion was composed of a proliferation of large polygonal cells with demarcated cell membrane, granular cytoplasm, and small uniform nuclei, bar = 50 mum (H&E stain; original magnification: x400); and (D) immunohistochemically, these cells were negative for S100, bar = 50 mum (original magnification: x400).
10.1177_2632010X19831257-fig1.jpg
PMC6546945_01_10.1177_2632010X19831257-fig1.jpg
fig1-2632010X19831257
It consisted of multiple nodules and measured about 2 cm in its greatest diameter (Figure 1A). Surface of cross-section was characteristically whitish-yellow and very smooth (Figure 1B). Histopathologically, the lesion was composed of a proliferation of large polygonal cells with demarcated cell membrane, granular cytoplasm, and small uniform nuclei (Figure 1C). Immunohistochemically, these cells were negative for S100 (Figure 1D).