Schwannoma of the Orbit.
10.7181/acfs.2015.16.2.67
- Author:
Kwang Seog KIM
1
;
Jin Woo JUNG
;
Kyung Chul YOON
;
Yu Jin KWON
;
Jae Ha HWANG
;
Sam Yong LEE
Author Information
1. Department of Plastic and Reconstructive Surgery, Chonnam National University Medical School, Gwangju, Korea. pskim@chonnam.ac.kr
- Publication Type:Original Article
- Keywords:
Schwann cells;
Neurilemmoma;
Orbital neoplasm;
Surgery
- MeSH:
Cicatrix;
Diagnosis;
Diagnosis, Differential;
Forehead;
Humans;
Hypesthesia;
Magnetic Resonance Imaging;
Medical Records;
Neurilemmoma*;
Orbit*;
Orbital Neoplasms;
Peripheral Nerves;
Physical Examination;
Postoperative Complications;
Recurrence;
Retrospective Studies;
Schwann Cells;
Sensation
- From:Archives of Craniofacial Surgery
2015;16(2):67-72
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND: A schwannoma is a benign, slow-growing peripheral nerve sheath tumor that originates from Schwann cells. Orbital schwannomas are rare, accounting for only 1% of all orbital neoplasms. In this study, we retrospectively review orbital schwannomas and characterize clinical, radiologic, and histologic features of this rare entity. METHODS: A retrospective review was performed to identify patients with histologically confirmed orbital schwannoma, among a list of 437 patients who had visited our hospital with soft tissue masses within the orbit as the primary presentation between 2010 and 2014. Patient charts and medical records were reviewed for demographic information, relevant medical and family history, physical examination findings relating to ocular and extraocular sensorimotor function, operative details, postoperative complications, pathologic report, and recurrence. RESULTS: Five patients (5/437, 1.1%) were identified as having histologically confirmed orbital schwannoma and underwent complete excision. Both computed tomography (CT) and magnetic resonance imaging (MRI) studies were not consistent in predicting histologic diagnosis. There were no complications, and none of the patients experienced significant scar formation. In two cases, patients exhibited a mild postoperative numbness of the forehead, but the patients demonstrated full recovery of sensation within 3 months after the operation. None of the five patients have experienced recurrence. CONCLUSION: Orbital schwannomas are relatively rare tumors. Preoperative diagnosis is difficult because of its variable presentation and location. Appropriate early assessment of orbital tumors by CT or MRI and prompt management is warranted to prevent the development of severe complications. Therefore, orbital schwannomas should be considered in the differential diagnosis of slow-growing orbital masses.
