A CASE OF NONRECURRENT INFERIOR LARYNGEAL NERVE (NRILN) RUNNING OVER THE THYROID GLAND

Nonrecurrent inferior layngeal nerve (NRILN) leaves the vagus trunk directly, usually running between the thyroid gland and trachea, and enter the larynex. Recently, we experienced a rare case of NRILN running between the thyroid gland and sternothyroid muscle. The case was accompanied with aberrant right subclavian artery. We often confirm the esophageal notch induced by aberrant subclavian artery by barium meal test before operation. To prevent the injury of the nerve, careful manuever, visualization of the recurrent nerve during the operation, and barium meal test before operation are important in clinical aspects.