[The inferior nonrecurrent laryngeal nerve: a report of 7 cases observed since 1987]. / Il nervo laringeo inferiore non ricorrente: descrizione di 7 casi osservati dal 1987.

The non-recurrent inferior laryngeal nerve is a rare anomaly (0.34% on th right side, extremely rare on the left side) that increases the risk of damage to the nerve during thyroid and parathyroid surgery. Seven cases of non-recurrent laryngeal nerve are reported, emphasizing the diagnostic accuracy of angio-MR for the anatomical identification of the vascular anomaly that invariably occurs with the nerve malformation.