Figure 3From: Case report – ancient schwannoma of the scrotum Microscopic appearance of ancient schwannoma. a) spindle cells in an Antoni type A area; a red arrow indicates a large bizarre hyperchromatic nucleus b) Antoni B areas consisting of spindle cells within a loose myxoid matrix, c) occasional pleomorphic nuclei within Antoni A areas, and d) positive S100 immunohistochemical staining.Back to article page