Fig. 2
From: Dermatomyositis associated with prostate adenocarcinoma with neuroendocrine differentiation
Immunohistochemical findings of prostate biopsy; hematoxylin and eosin (a, b), PSA (c, d), synaptophysin (e), and NCAM1/CD56 (f). Hematoxylin and eosin staining reveals adenocarcinoma with Gleason score 4 + 5 (a) and components of neuroendocrine differentiation (b). The components of typical adenocarcinoma (c) and neuroendocrine differentiation (d) are highly and weakly positive for PSA, respectively. The components of neuroendocrine differentiation are positive for synaptophysin (e) and NCAM1/CD56 (f). The bar indicates 100 μm