Vol.97 No.4 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 97 No. 4 April 2004
A Case of Schwannoma in the Maxillary Sinus
Rie Horie, Shinichi Sato and Tadahiko Matsunaga
(Shimada Municipal Hospital)
Satoshi Ikegami
(Tenri Hospital)
Only 2.9％ of head and neck schwannomas are found in the nasal cavity or paranasal sinuses. A 47-year-old man preseted with a complaint of left nasal obstruction, rhinorrhea, epiphora and left facial pain. At first, a malignant tumor was suspected, because computed tomography showed a large mass and bony destruction of the left maxillary sinus.
It was difficult to make the diagnosis of schwannoma. On biopsy, the intraoperative findings was non-malignant tumor (schwannoma or neurofibroma). Then, complete endscopic excision of the tumor was performed by the Caldwell-Luc method. It is important to resect widely as soon as possible because of the possibility of malignancy.
Key words : schwannoma, maxillary sinus, endscopic technique, Caldwell-Luc method