Journal of Clinical Images and Medical Case Reports

ISSN 2766-7820
Clinical Image - Open Access, Volume 3

Non-Recurrent Laryngeal Nerve (NRLN) is a rare
anatomical anomaly of the RLN

*Corresponding Author : Nagesh Madnoorkar
Chopda Medicare & Research Center Pvt Ltd, Magnum Heart Institute, Nashik, Maharastra, India.
Email: [email protected]

Received : Sep 07, 2022

Accepted : Oct 11, 2022

Published : Oct 18, 2022

Archived :

Copyright : © Madnoorkar N (2022).

Citation: Madnoorkar N. Non-Recurrent Laryngeal Nerve (NRLN) is a rare anatomical anomaly of the RLN. J Clin Images Med Case Rep. 2022; 3(10): 2107.

Case description

A 34-year young lady with a right-sided euthyroid nodule of 3 x 5 cm size for one year visited our clinic for surgery. FNAC was reported as colloid goiter. The right hemi- thyroidectomy surgery was planned. Intraoperatively while dissecting the right thyroid lobe, we could not find the right recurrent laryngeal nerve in its normal course, but we found a cord white-like structure running transversely & entering the larynx at the level of the cricothyroid muscle. We dissected it till its origin from the right vagus nerve in the neck. So, this was Non-Recurrent Laryngeal Nerve (NRLN) which is a rare anatomical anomaly of the Recurrent Laryngeal Nerve (RLN) which arises higher in the neck and runs a transverse course directly to the larynx as the NRLN without looping around the vessels in the chest. This intraoperative image is showing right-sided neck structures after removal of the right thyroid lobe & isthmus. The labeled structures in the image from right to left are the Common Carotid Artery (CCA), Vagus Nerve (VN), Non-Recurrent Laryngeal Nerve (NRLN), trachea & left lobe of the thyroid gland. Her post-operative recovery was good without any voice change. The final histopathology report was suggestive of colloid goiter.

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