Abstract
A case of adenoid cystic carcinoma found in a 46-year-old man is reported. The chief complaint was a right nasal obstruction, and a computed tomography (CT) scan suggested it to be a malignant tumor arising from the nasal septum which invaded the hard palate. The histological analysis based on an in incisional biopsy revealed it to be an adenoid cystic carcinoma showing a cribriform pattern. The tumor was resected with the nasal septum and hard palate. After the operation, both radiotherapy and chemotherapy were performed. A local recurrence was found after 64 months and a reoperation was thus performed including a resection of the posterior wall of the maxillary bone, the pterygoid process and muscle. To date, neither any further local recurrence nor distant metastasis has been found. As far as we could ascertain in a literature search, only 15 cases of such tumors have been previously reported in Japan.
