Case Report
Copyright ©The Author(s) 2019.
World J Clin Oncol. May 24, 2019; 10(5): 213-221
Published online May 24, 2019. doi: 10.5306/wjco.v10.i5.213
Figure 2
Figure 2 Immunohistochemistry of the submandibular mass in Case 1. A-C: The tumor cells demonstrated positive staining for (A) Human Melanoma Black-45 (× 400) and (B) S-100 (× 400) and negative staining in neoplastic cells for (C) keratin (× 400); D: The melanin pigment in the tumor cells showed positive reaction to Masson Fontana stain (× 400).