Highlights ■ Immunohistochemistry distinguishes Warthin-like mucoepidermoid carcinoma from metaplastic Warthin tumor. ■ CK7, mitochondrial patterns, and double-layer epithelium suggest metaplastic Warthin tumor. ■ Basal CK14, CK5/6, and p63 distinguish metaplastic Warthin tumor from Warthin-like mucoepidermoid carcinoma. ABSTRACT Objective: This study aimed to analyze the clinicopathological and immunohistochemical profiles of unconventional Warthin tumors and mucoepidermoid carcinomas. Methods: Eleven low-grade salivary gland tumors with Warthin-like features were analyzed. Group A (n=6) showed a double-layered oncocytic epithelium in less than 50% of the […]
