What is it about?

A new anatomical variation of right non recurrent laryngeal nerve

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Why is it important?

Failure in identification of the nerve or overlooking the possibility of the nonrecurrent laryngeal nerve may result in serious sequelae of nerve damage, ipsilateral injury may lead to permanent hoarseness

Perspectives

Currently, there are 3 types of nonrecurrent laryngeal nerve courses. Type 1 passes near to the superior thyroid vessels. Type 2 (2A) passes parallel to the inferior thyroid artery and has a transverse course above it. Type 3 (2B) passes parallel to the inferior thyroid artery and transversely between branches of or under the inferior thyroid artery, we can add to this classification type 4, which are 2 nonrecurrent laryngeal nerves (double nerves) passing above and parallel to the inferior thyroid artery.

Dr. Sardar Hassan Arif
University of Duhok

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This page is a summary of: Two Concomitant Right Nonrecurrent Laryngeal Nerves Encountered During Thyroidectomy (Type 4 Course): Reported for the First Time, Ear Nose & Throat Journal, April 2020, SAGE Publications, DOI: 10.1177/0145561320918984.
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