Fig. 3From: Huge epithelioid malignant peripheral nerve sheath tumor in the left axilla: a case reportHistopathological biopsy findings. a Hematoxylin-and-eosin staining (high-power field). Atypical epithelial cells with spindle-shaped nuclei and rich cytoplasm were present in dense sheets. b S-100 staining. The tumor was strongly and diffusely positive for S-100 proteinBack to article page