抄録
We report a rare case of Warthin tumor accompanied by bone formation. A 57-year-old woman with pus discharge in the right mandibular gingiva visited our hospital in August 1995. Several fistulas in the right mandibular gingiva and a rough-surfaced tumor 1.5 cm in diameter on the right side of the tongue were found. The clinical diagnosis was osteomyelitis of the mandible and tongue cancer. Sequestrotomy of the mandible and partial glossectomy were performed in October 1995. At that time, a computed tomographic (CT) scan showed 1-cm-diameter lesion in the right parotid gland; however, she hesitated to undergo surgery. In April 2001, a CT scan revealed a bilateral mass 1.2 cm in diameter near the parotid glands, and the mass in the right parotid gland increased to 2 cm in diameter and possessed a small calcified granule inside. 99mTc scintigraphy of the salivary glands showed a hot spot in the both parotid glands, consistent with the tumor. In March 2002, she underwent extirpation of the tumors arising in the both parotid glands. Histopathological examination showed a typical Warthin tumor appearance, with bone formation in the hyalinized structure of the tumor. At present, the patient has no evidence of disease.
