A Case of NRRL(Non-Recurrent Recurrent Laryngeal Nerve) in a Patient with the Parathyroid Adenoma

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J Korean Soc Laryngol Phoniatr Logop > Volume 11(2); 2000 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2000;11(2): 188-191.

부갑상선 선종 수술시 관찰된 비회귀성 반회후두신경 (Non-Recurrent Recurrent Laryngeal Nerve) 1례

한수진, 임재열, 박헌이, 최홍식

연세대학교 의과대학 이비인후과학교실

A Case of NRRL(Non-Recurrent Recurrent Laryngeal Nerve) in a Patient with the Parathyroid Adenoma

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ABSTRACT

In thyroid and parathyroid surgery, damage to the recurrent laryngeal nerve(RLN) is the most common iatrogenic cause of vocal cord paralysis. Identification and preservation of the BLNs and meticulous technique can siginificantly decrease the incidence of this complication. We experienced one case of NRRLN in a patient with the parathyroid adenoma. During the dissection, there was no branch to be considered as RLN in tracheoesophageal groove. While searching for the RLN, We found a white structure coursing horizontally at the level of cricoid cartilage directly arising from the vagus nerve in the carotid sheath. That structure was nonrecurrent recurrent laryngeal nerve(NRRLN) and NRRLNs are exceedingly rare. Awareness of the possibility of NRRLN will prevent the surgeon from accidentally severing one if it is encountered during surgery.

KEY WORDS： Recurrent laryngeal nerve;Parathyroid adenoma;NRRLN(non-recurrent recurrent laryngeal nerve);

중심 단어： 비회귀성 반회후두신경;부갑상선 선종;