안와 신경초종

• 영문명: Orbital Schwannoma: Report of Two Cases and Review of Literature
• 발행기관: 대한두개저학회
• 저자명: 장우열(Woo-Youl Jang) 정신(Shin Jung) 정태영(Tae-Young Jung) 김인영(In-Young Kim) 강삼석(Sam-Suk Kang) 김수한(Soo-Han Kim)
• 간행물 정보: 『대한두개저학회지』제1권 제1호, 41~46쪽, 전체 6쪽
• 주제분류: 의약학 > 일반외과학
• 파일형태: PDF
• 발행일자: 2006.06.30

영문 초록

Intracranial schwannomas predominantly arise from the 8th cranial nerve, and less commonly from the 5th, 9th, 10th, and 7th cranial nerves. Herein, we describe the clinical features and surgical management of orbital schwannomas. A 64-year-old woman and 45-year-old woman were admitted to our hospital with complaints of proptosis. In particular, visual field defects and decreased visual acuity were demonstrated in the 64-year-old patient. A CT scan showed low density lesions within the orbital canal. MR imaging revealed a low signal intensity on the T1-weighted scan, and a high signal intensity on the T2-weighted scan with heterogenous enhancement. The tumors were totally resected via an orbitocranial approach. The histopathological finding was neurilemmoma. It was found in one patient that the tumor originated from the lacrimal nerve. In the other patient, the tumor originated from the frontal branch of the trigeminal nerve. There was minimal sensory change in the periorbital area in the case of the schwannoma which originated from the trigeminal nerve and a visual field defect remained in the case of the patient with the lacrimal schwannoma. Even though schwannomas have been reported to originate from all cranial nerves, except the optic nerve, most arise from the vestibular nerve. We reported two cases of orbital schwannoma which originated from the lacrimal nerve and the frontal branch of the trigeminal nerve, respectively.

목차

Introduction

Case reports

Discussion

Conclusion

키워드

Orbital neoplasm Peripheral nerve tumor Schwannoma