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BMJ Case Reports 2009; doi:10.1136/bcr.10.2008.1107
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Anatomic variations of the non-recurrent inferior laryngeal nerve

  1. Mehmet Uludag1,
  2. Adnan Isgor2,
  3. Gürkan Yetkin1,
  4. Bülent Citgez1
  1. 1
    Department of 2nd General Surgery, Sisli Etfal Training and Research Hospital, Etfal Sokak No:1, Istanbul 34360, Turkey
  2. 2
    Golden Horn University Health Sciences Institute, Aksaray, Istanbul, Turkey
  1. M Uludag, drmuludag{at}hotmail.com
  • Published 27 March 2009

DESCRIPTION

The non-recurrent inferior laryngeal nerve (NIRLN) is a rare anomaly (0.5–0.6% on the right side, extremely rare on the left side (0.004%)), which increases the risk of damage to the nerve during surgery. The right NRILN is associated with a right subclavian artery arising directly from the aortic arch. The left NRILN is associated with situs inversus.13

The origin of the NRILN is cervical. Three types can be …

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