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KMID : 0986520160160010013
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Korean Journal of Endoscrine Surgery
2016 Volume.16 No. 1 p.13 ~ p.17
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Non-recurrent Laryngeal Nerve Identified During Robotic Thyroidectomy in a Patient with Papillary Thyroid Carcinoma
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Kang Sang-Yull
Kim Seon-Kwang
Youn Hyun-Jo
Jung Sung-Hoo
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Abstract
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A non-recurrent laryngeal nerve is a rare anatomical variant that entails considerable risk for iatrogenic injury during thyroid surgery. We encountered a patient with a non-recurrent laryngeal nerve that went unnoticed on preoperative imaging but was discovered incidentally during robotic thyroidectomy. A 44 year old woman presented at our department with papillary thyroid microcarcinoma, diagnosed by ultrasonography-guided fine needle aspiration cytology. During robotic right thyroidectomy and central lymph node dissection, we could not detect any structure resembling the recurrent laryngeal nerve around the inferior thyroid artery. Thus, we suspected the existence of a non-recurrent laryngeal nerve, and successfully identified a nerve entering the larynx directly from the vagus nerve without recurring. A three-dimensional high magnification view via a robotic endoscope can aid thyroid surgeons to safely identify and preserve a non-recurrent laryngeal nerve.
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KEYWORD
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Recurrent laryngeal nerve, Robotics, Thyroidectomy, Papillary thyroid carcinoma
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