Plasmacytoid Melanoma of the Urinary Bladder and Lymph Nodes with Immunohistochemical Expression of Plasma Cell Markers Revealing Primary Esophageal Melanoma

Figure 2

neoplastic cells demonstrated eosinophilic cytoplasm and eccentric nuclei with prominent nucleoli; some cells are binucleated (⇒); note the presence of pigment (⊳) (HE ×400).