MUC5AC and mucoepidermoid carcinoma: The most commonly accepted criteria for diagnosis of MEC proposed by Alexander et al. and modified by Browand and Waldron include intact bony cortical plates on CT, evidence of bony destruction on radiographs, other primary tumor exclusion that mimics the central tumor histologically, exclusion of an odontogenic tumor, histopathologic confirmation and intracellular mucin detection [9,14,19].