PAX8 and neoplasm: The tumor was positive for S-100, mammaglobin, low-molecular-weight cytokeratin, cytokeratin AE1/AE3, vimentin, and GATA binding protein 3 (GATA-3) and negative for cytokeratin 5/6, tumor protein 63 (p63), leukocyte common antigen or cluster of differentiation 45 (CD45), paired-box gene 8 (PAX-8), and CD68, which further supported the diagnosis of parotid SC.