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  Indian J Med Microbiol
 

Figure 2: (a) Immunohistochemistry of neurofibroma staining positive with the S-100 protein × 200. (b) Immunohistochemistry of neurofibroma staining positive with immunostain × 200. (c) Immunohistochemistry of schwannoma staining positive with S-100 protein × 100. The staining pattern of schwannoma is characteristically much more diffuse and involves almost all tumor cells compared with neurofibroma. (d) Immunohistochemistry of perineurioma staining positive with epithelial membrane antigen × 200

Figure 2: (a) Immunohistochemistry of neurofibroma staining positive with the S-100 protein × 200. (b) Immunohistochemistry of neurofibroma staining positive with immunostain × 200. (c) Immunohistochemistry of schwannoma staining positive with S-100 protein × 100. The staining pattern of schwannoma is characteristically much more diffuse and involves almost all tumor cells compared with neurofibroma. (d) Immunohistochemistry of perineurioma staining positive with epithelial membrane antigen × 200