Figure 2.

Immunohistochemical features. The tumor showed focal, strong reactivity with HMB-45 (A), diffuse, strong nuclear reactivity with TFE3 (B), patchy moderate immunoreactivity with progesterone (C), and strong membranous positivity with CD117 (D). Pertinent negative stains included vimentin (E) and pan-cytokeratin (F).

Ritterhouse et al. Diagnostic Pathology 2014 9:81   doi:10.1186/1746-1596-9-81
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