Case Report

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

Figure 6

(a) Neoplastic cells showed strong positivity with S100 protein (×100). (b) Focal expression for CD138/syndecan-1 (×100). (c) Neoplastic cells showed strong positivity with HMB45 (×40). (d) HMB45 staining showing increased number of melanocytic cells at the basal layer of the squamous epithelium (×100).
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(a)
916256.fig.006b
(b)
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(c)
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(d)