INTRODUCTION

The recurrent laryngeal nerve (RLN) innervates all the important laryngeal muscles except the cricothyroid. Careful dissection of the RLN during surgery reduces the risk of damage. The non-RLN (NRLN) is a rare anatomical anomaly of the RLN, with an incidence of 0.5 to 0.7% in thyroid surgery (1). It is difficult to identify this anomaly preoperatively unless an associated vascular anomaly is suspected. This study aims to emphasize the awareness of the possibility of a NRLN to prevent iatrogenic injury.