Introduction:
Non recurrent laryngeal nerve (NRLN) is a rare entity associated with an aberrant right subclavian artery (ARSA) also called arteria lusoria[¹]. This association is not well known by surgeons or by radiologists[²]. Being aware of it can help to predict the presence of a NRLN before surgery and thus avoid its injury.
In our department, between January 2016 and December 2018, a total of 472 total thyroidectomies, right lobectomies and right parathyroidectomies have been done. We don’t use intraoperative neuromonitoring (IONM), but dissection of inferior laryngeal nerve is systematic. Four NRLN have been identified. Its frequency is estimated to 0.8%.