KRAS and mucoepidermoid carcinoma: Detection of a KRAS mutation in a randomly tested index case of WT showing de novo mucoepidermoid-like proliferations but lacking unequivocal mucoepidermoid carcinoma features and lacking detectable MAML2 rearrangement prompted us to perform the current study to verify the hypothesis, if this mutation is recurrent in this type of WT.