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Case of coexisting, ipsilateral nonrecurrent and recurrent inferior laryngeal nerves

  • Y S Yang (a1), S K No (a2), S C Choi (a1) and K H Hong (a1)
Abstract
AbstractObjective:

We report an extremely rare case of coexisting, ipsilateral nonrecurrent inferior laryngeal nerve and recurrent inferior laryngeal nerve.

Method:

We present a case report and a review of the world literature concerning ipsilateral nonrecurrent inferior laryngeal nerve and recurrent inferior laryngeal nerve.

Results:

The presence of a coexisting, ipsilateral nonrecurrent inferior laryngeal nerve and recurrent inferior laryngeal nerve is a very rare embryological aberration which is associated with a right subclavian artery originating from the aortic arch. We report a case of coexisting, ipsilateral nonrecurrent and recurrent inferior laryngeal nerves associated with this vascular anomaly.

Conclusion:

The surgeon must be aware of the possibility of coexisting, ipsilateral nonrecurrent inferior laryngeal nerve and recurrent inferior laryngeal nerve, and thus must trace the nerve in its entirety. Occasionally, what appears to be a nonrecurrent inferior laryngeal nerve will actually be a communicating branch between the recurrent inferior laryngeal nerve and the oesophageal or sympathetic ganglia. If such a neurological variant is present, the consequences of careless dissection could include not only vocal fold paralysis but also dysphagia (if the pharyngeal and oesophageal branches of nonrecurrent or recurrent inferior laryngeal nerve are injured).

Copyright
Corresponding author
Address for correspondence: Dr Yun Su Yang, Department of Otolaryngology-Head and Neck Surgery, Medical School, Chonbuk National University, Chonju, Chonbuk 560-182, Republic of Korea. Fax: 82 63 250 1986 E-mail: yang2002@chonbuk.ac.kr
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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

4Z Mra , MK Wax . Nonrecurrent laryngeal nerves: anatomic considerations during thyroid and parathyroid surgery. Am J Otolaryngol 1999;20:91–5

6M Raffaelli , M Iacobone , JF Henry . The “false” nonrecurrent inferior laryngeal nerve. Surgery 2000;128:1082–7

8G Materazzi , P Berti , P Iacconi , P Miccoli . Nonrecurrent laryngeal nerve predicted before thyroidectomy by preoperative imaging. J Am Coll Surg 2000;191:580

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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
  • URL: /core/journals/journal-of-laryngology-and-otology
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