A case of myoepithelioma emerging in the buccal region: verification of the primary site based on magnetic resonance imaging, computed tomography, histopathological, and anatomical findings

Abstract

A case of myoepithelioma presumed to have arisen from an accessory parotid gland is reported. Preoperative fine-needle aspiration cytological findings suggested a malignant tumor, possibly an adenoid cystic carcinoma, while histopathological findings acquired during surgical resection revealed a myoepithelioma. The tumor was located adjacent to the Stensen duct, suggesting an accessory parotid gland origin. The diagnostic potential of magnetic resonance imaging and contrast-enhanced computed tomography in diagnosing this disease is discussed.