• 대한두경부종양학회지
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• 제16권2호
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• pp.224-227
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• 2000

Neurilemmomas are benign nerve sheath tumors arising from peripheral Schwann cells. The tumor composed of Schwann cells and collagen fibers, can occur in any region of the body where there is a nerve that has a Schwann sheath. The incidence of the tumor in the head and neck is about 30% with many of these occurring on the vagus nerve. Neurilemmoma is characterized by solitary occurrence, with sharp demarcation and encapsulation. Multiple genesis is very rare. This article presents a rare case of multiple neurilemmomas located bilaterally in the cervical region.

• 대한두경부종양학회지
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• 제8권1호
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• pp.44-49
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• 1992

Malignant schwannoma is a rare tumor arising from the schwann sheath of the nerve fibers. It spreads early to reginal node and metastasis to the lung. Radical surgery have performed for treatment of choice but combined modalities such as radiotherapy or adjuvant chemotherapy have been recommanded recently. The authors experienced two cases of malignant schwannoma originating from the ethmoid sinus and ventricular fold of larynx. and we report these cases briefly.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제33권3호
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• pp.260-262
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• 2007

Nearly 45% of all neurilemmoma occur in the head and neck area, but only 1% have an intraoral origin. The authors report two cases of uncommon neurilemmoma of the tongue. Both of them presented with a mass on the lateral border of the tongue, which was noted several days before. The lesions of tongue appeared as smooth-surfaced, well-circumscribed mass. They were excised under general anesthesia and diagnosed as neurilemmoma on histopathologic examination.

• 대한두경부종양학회지
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• 제34권1호
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• pp.59-63
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• 2018

Brachial plexus schwannomas are rare tumors. They are benign nerve sheath tumors and only about 5% of Schwannoma arise from the brachial plexus. Due to its rarity and complex anatomical location they can pose a formidable challenge to surgeons. We present a case of a young patient who presented with an supraclavicular swelling three months, that were proven to be schwannoma on histopathology.

• 대한치과의사협회지
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• 제22권1호통권176호
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• pp.75-79
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• 1984

Neurilemoma (Schwannoma) is a solitary encapsulated benigh tumor and apparently derived from Schwann cells of the nerve sheath. This is a case of 17-year-old Korean female with the neurilemoma of the tongue. Chief complaint of the patient was painless palpable mass on left tongue body. Diagnosis was established by histologic examination after simple surgical excision of tumor mass. A brief review of related literatures was made.

• Journal of Chest Surgery
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• 제32권10호
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• pp.947-950
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• 1999

Tracheal neurilemoma, an extremely rare benign tracheal tumor that there has been only one case reported in 1996 throughout the nation, is a slowly progressing disease that obliterates the upper airway, delays diagnosis for its symptom similarity to asthma, and makes intubation for operation difficult. Bronchoscopic is therefore needed for diagnosis. There are two options for the treatment methods, a bronchoscopic resection or open surgical resection; however if intubation is difficult, then the bronchoscopic resection is used first to keep the airway open for the surgical resection. In this case, the severe tracheal stenosis impeding intubation made the surgical resection of the primary tracheal neurilemoma with extratracheal mass impossible; therefore, bronchoscopic laser resection was applied first to optain the airway passage for endotracheal intubation, followed by a successful open surgical resection.

• 대한기관식도과학회지
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• 제11권2호
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• pp.36-39
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• 2005

Neurofibromatosis type II is an autosomal dominant, highly penetrant disease whose hallmark is bilateral vestibular schwannoma. Hearing loss is the most symptom in Neurofibromatosis type II. The patient can also present with tinnitus, disequilibrium, and headache. Cranial nerve symptoms, such as facial numbness or weakness, dysphagia, or hoarseness, can also be present. The authors experienced a case of neurofibromatosis type II having huge retropharyngeal mass, retropharyngeal abscess, and bilateral acoustic neuromas. The infection was controled with aggressive antibiotics with drainage. The huge neurilemmoma in retropharyngeal space was removed successfully via transoral approach. The authors report the case with literature review.

• 대한기관식도과학회지
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• 제5권1호
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• pp.85-89
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• 1999

Neurilemmoma is a benign, well-encapsulated neurogenic tumor that arises in cranial, peripheral, or autonomic nerves that have nerve sheaths containing schwann cells. From 16 to 45% of all neurilemmoma cases occur in the head and neck region and only about 4% of those cases are found in the nose and paranasal sinuses, but very rarely found in the nasal septum. Recently, we experienced a case of isolated neurilemmoma which arose from the nasal septum of a 30-year-old female patient who complained of nasal obstruction and postnasal drip. The mass was broadly based on the right anterior portion of the nasal septum and confined to the nasal cavity, displacing the lateral wall of the nasal cavity and middle turbinate, laterally and posteriorly, respectively. The tumor mass was completely excised through transnasal endoscopic surgery under general anesthesia. The final pathological diagnosis viewed under a microscope after H&E and anti S-100 protein stain was a benign neurilemmoma in which Antoni A type and B type both existed. This report presents a case of neurilemmoma which arose from the nasal septum with reviews of the clinicopathologic features.

• 대한기관식도과학회지
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• 제7권1호
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• pp.50-53
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• 2001

Tumors of trachea are uncommon and benign tumors are rare in adults. Tracheal tumors are overlooked as a cause of pulmonary symptoms. Neurilemmoma is originated from Schwann cells of nerve sheath, which are characterized by benign, solitary, and encapsulated mass. Although it may occur most frequently in the head and neck region, the neurilemmoma of trachea is extremely rare. We report a case in a 55-year-old man who presented with mild exertional dyspnea and foreign body sensation. The round encapsulated mass was demonstrated in posterior wall of trachea and removed by tracheofissure.

• 대한기관식도과학회지
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• 제18권1호
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• pp.24-26
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• 2012

As benign tumor originating in Schwann cells of nerve sheath, Schwannoma can rise in any site involving cranial nerve, sympathetic nerves, peripheral nerves excepting optic nerves and olfactory nerves. Schwannoma rarely occurs in trachea, and although can appear in any part, most often seen in the lower third of the trachea. Here, we reported a case of intra-tracheal schwannoma misdiagnosed and treated as bronchial asthma, later identified and successfully excised through an external approach.