Agenesis of isthmus of thyroid gland - a case report

Abstract

A wide range of morphological varieties and developmental anomalies of the thyroid gland have been reported in literature such as hypoplasia, ectopic thyroid, hemi agenesis and agenesis. Out of these the incidence of agenesis of the isthmus of thyroid gland is rare and very few cases have been reported. During routine dissection of the male cadaver, agenesis of isthmus of thyroid gland in the midline was noted. It resulted in two lateral lobes and the arteries supplying the gland were confined only to the respective lobe with absence of anastomosis. Agenesis of Isthmus of thyroid has clinical, phylogenetic and surgical significance.

Keywords

• agenesis
• anomaly
• thyroglossal duct
• thyroid