Olfactory Ensheathing Cell Tumor Arising from the Olfactory Mucosa
Figure 2
Hematoxylin and eosin (HE) staining shows that the tumor is composed of spindle cells with eosinophilic cytoplasm (a). Immunohistochemistry demonstrates that the tumor is strongly positive for S100 (b) and neuron-specific enolase (NSE, (d)), weakly positive for synaptophysin (SYN, (f)), and is negative for Leu7 (c) and epithelial membrane antigen (EMA, (e)). In immunohistochemistry, nuclear staining with hematoxylin was performed. Scale bar in (f) represents 50 μm for (a)–(f).
