Polymorphous low-grade adenocarcinoma of the tongue.

Primary adenocarcinoma of the oral cavity is an infrequently encountered problem. Adenocarcinomas are distinctive lesions which can be subclassified according to their tissue growth patterns or histomorphology. The polymorphous low-grade adenocarcinoma of the oral cavity is usually of minor salivary gland origin. We present an unusual case of polymorphous low-grade adenocarcinoma of the tongue and add this case to the existing two previous reports in the literature. A review of the current literature concerning this tumor is included. Treatment presently consists of complete local excision followed by radiation therapy.