Atypical granular cell tumor of the urinary bladder: A case report

Figure 5 Immunohistochemistry of the post-operative specimen. A-D: Hematoxylin-eosin staining shows abundant granular eosinophilic cells with round cytoplasm and small nuclei as shown in (A) (× 100) and (C) (× 400); S-100 staining shows strong positivity for scattered pleomorphic cells with vacuolar nuclei and the increased nuclei/cytoplasm ratio as shown in (B) (× 100) and (D) (× 400).