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Hoarseness after resection of a cervical vagus nerve schwannoma
Sung Hyun Noh1, Ho Yeol Zhang1
1Department of Neurosurgery, National Health Insurance Service Ilsan Hospital,Goyang, Korea, Goyang, Korea
22Department of Neurosurgery, National Health Insurance Service Ilsan Hospital, Yonsei University College of Medicine, Goyang, Korea, Goyang, Korea
Correspondence  Ho Yeol Zhang ,Tel: 031-900-0256, Fax: 031-900-0343, Email: hyzhang@nhimc.or.kr
Received: November 10, 2016;  Accepted: December 30, 2016.  Published online: December 30, 2016.
Schwannomas of the cervical vagus nerve are slow-growing asymptomatic solitary neck masses that rarely undergo malignant change. We report the case of a 41-year-old man who presented with a six-month history of a painless neck mass and paroxysmal coughing after palpation of the mass. Surgical excision of the mass was performed, and histopathological examination revealed that the mass was a schwannoma. The patient developed hoarseness after removal of the schwannoma, which originated from the fibers of the recurrent laryngeal nerve. We describe the relationship of the tumor and recurrent laryngeal nerve and review the anatomy of the vagus nerve.
Key words: Schwannoma; Cervical vagus nerve; Recurrent laryngeal nerve; Hoarseness
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