Vol. 100  No. 6 June  2007

Three Cases of Cervical Schwannoma Arising from Vagus Nerve

Takao Ogawa and Fumio Ogawa
(Nagahama Red Cross Hospital)

Masakazu Hanamitsu, Masayuki Shibayama, Satoshi Sonoda and Takeshi Shimizu
(Shiga University of Medical Science)

Mikio Suzuki
(University of the Ryukyus)

     Cervical schwannoma arising from the vagus nerve is relatively uncommon. During the last six years, we treated three cases of cervical schwannnoma arising from the vagus nerve, that were effectively diagnosed by MR imaging. We performed complete resection of the tumor in one case and intracapsular resection in the other two cases, however, postoperative nerve palsy occurred in every case, causing mis-swallowing and hoarseness. Mis-swallowing improved within one month without treatment, but hoarseness persisted longer. Finally, medialization of the vocal cords was a successive treatment to improve hoarseness.

Key words : schwannoma, vagus nerve, MR image

第100巻6号 目次   Vol.100 No.6 contents