악하선 부위에 발생한 신경초종의 치험례

THE UNUSUAL OCCURRENCE OF A LARGE NEURILEMMOMA IN THE AREA OF SUBMANDIBULAR GLAND : A CASE REPORT

Neurilemmoma is a bemgn tumor of nerve sheath origin, apparently derived from the Schwann cells, which may arise from any myelinated nerve fiber Although it is a relatively common tumor, it is rarely seen in the oral cavity. Actually the greatest majority of oral neurilemmomas have been reported in tongue and cheek, and most of them have been in small size. The following case is reported because of the large tumor size and its unusual location in the area of submandibular gland. It seems to arise from the mylohyoid nerve of the fifth cranial nerve. A 35-year-old man came to the department of oral and maxillofacial surgery of Kyung-pook University Hospital in October, 1994, for treatment of an egg-sized mass in the left submandibular area which had been noticed 7 months before The mass was excised under general anesthesia, and the postoperative course was uneventful. The gross specimen was ovoid, measuring 38×18×15mm, and well encapsulated with thin fibrous capsule. Histopathological finding indicated neurilemmoma composed of Antoni type A and type B tissue.