Case Reports in Otolaryngology / 2016 / Article / Fig 2

Case Report

Metastatic Malignant Melanoma of Parotid Gland with a Regressed Primary Tumor

Figure 2

(a) Infiltrated parotid tumor. Normal parotid tissue in the left (residue) (100x HE). (b) The melanin-rich tumor (400x HE). (c) The analysis identified positive staining for HMB-45 (400x). Asterisk: salivary duct, negative staining for HMB-45. (d) Negative staining for PanCK of the tumor and positive staining for PanCK in the residue parotid tissue (PanCK, 100x).

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