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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Hum Pathol. 2016 Apr 29;55:44–50. doi: 10.1016/j.humpath.2016.04.009

Figure 2.

Figure 2

All eleven BSNS (100%) demonstrated some degree of S100 positivity (A, X400). Although reactivity was focal in most cases, all BSNS tested were also positive for smooth muscle actin (B, X400). A subset of BSNS demonstrated focal positivity for desmin (C, X400) and myogenin (D, X400).