• Proceedings of the KOR-BRONCHOESO Conference
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• 1981.05a
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• pp.14.1-14
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• 1981

Neurofibroma are slow growing benign tumors arising from the neurilemal sheath (Schwann cells) and fibroblasts of the peripheral nerve. This benign tumor may occur as a solitary lesion or as a part of the syndrome of neurofibromatosis. The neurofibroma of oral tissues is rare in otolaryngologic field and usually presents as a firm, elevated, nonpainful lesion that shows the usual histologic findings of a neurofibroma or neurilemmoma. Recently, we have experienced a neurofibroma arising from the tongue in a 54 year old female and removed successfully under local anesthesia. No evidence of recurrence has been observed up to date.

• Archives of Craniofacial Surgery
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• v.16 no.2
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• pp.67-72
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• 2015

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.