Synchronous malignant mucoepidermoid tumor of the parotid gland and Warthin's tumor in adjacent lymph node.

A case of a malignant mucoepidermoid tumor (poorly differentiated) occurring simultaneously with a homolateral Warthin's tumor is presented. The simultaneous occurrence of two salivary gland tumors of different types is extremely rare. Only five cases have been reported in the literature. The occurrence of a malignant mucoepidermoid tumor and a Warthin's tumor in the same patient has not been previously reported.