Olfactory Schwannoma: Case Report.
10.3340/jkns.2009.45.2.103
- Author:
Yu Seok CHOI
1
;
Kyung Su SUNG
;
Young Jin SONG
;
Hyung Dong KIM
Author Information
1. Department of Neurosurgery, College of Medicine, Dong-A University, Busan, Korea. hdkim@donga.ac.kr
- Publication Type:Case Report
- Keywords:
Schwannoma;
Olfactory nerve
- MeSH:
Adult;
Cranial Fossa, Anterior;
Cranial Nerves;
Ethmoid Sinus;
Facial Nerve;
Female;
Gadolinium;
Headache;
Humans;
Magnetic Resonance Imaging;
Neurilemmoma;
Olfaction Disorders;
Olfactory Bulb;
Olfactory Nerve;
Skull Base;
Trigeminal Nerve
- From:Journal of Korean Neurosurgical Society
2009;45(2):103-106
- CountryRepublic of Korea
- Language:English
-
Abstract:
Intracranial schwannomas preferentially arise from the vestibular branch of the eighth nerve, and rarely from the trigeminal nerve, facial nerve, and lower cranial nerves. Anterior cranial fossa schwannomas are extremely uncommon and few details about them have been reported. The patient was a 39-year-old woman whose chief complaints were anosmia and frontal headache for 2 years. The gadolinium (Gd)-enhanced magnetic resonance imaging (MRI) showed an extra-axial mass from ethmoid sinus to right frontal base region near the midline, with solid enhancement in lower portion and multicystic formation in upper portion. The tumor was totally resected via basal subfrontal approach. At operation, the tumor had cystic portion with marginal calcification and the anterior skull base was destructed by the tumor. The olfactory bulb was involved, and the tumor capsule did not contain neoplastic cells. The histopathological diagnosis was schwannoma. We report a rare case of anterior cranial fossa schwannoma with literature review.
