Figure 5From: Brain metastases as primary manifestation of a melanocytic malignant peripheral nerve sheath tumor in a 60-year-old man A Hematoxylin-Eosin (H&E) staining, with polymorphic, spindled cells in nestlike clusters (10×). B Melanin within epitheloid cells (20×). C Positive immunreaction against S-100 (20×). D Positive immunreaction against VIM (20×).Back to article page