Paraneoplastic Dermatomyositis Associated with Metastatic Seminoma

Figure 2

Hematoxylin-eosin staining shows large, oval tumor cells with clear, round nuclei and clear cytoplasm. The tumor was histologically diagnosed as seminoma. Immunological staining showed positive results for placental alkaline phosphatase and C-kit but negative results for AFP and HCG. CD20 and CD3, as markers of lymphoma, were also negative.