Abstract
Adenoid cystic carcinoma is a common malignant tumor which usually arises in the salivary glands but occasionally arises in the nasal or paranasal cavity.
We report an unusual case of adenoid cystic carcinoma in a 39-year-old woman who presented right trigeminal and hypoglossal nerve palsy. MRI showed a diffuse tumor mass in the right paranasal sinuses infiltrating to the base of the skull. We thought the tumor originated in the posterior wall of the right maxillary antrum and the pterygopalatine fossa, then spread posteriorly to the cavernous sinus along the infraorbital nerve and inferiorly along the internal carotid artery.
We concluded that it was too late for a curative resection, and a total of 63.2 Gy radiotherapy was administered. Following therapy, the tumor regressed in size, but did not disappear.
