Thyroid hemiagenesis: report of two cases and literature review -

Abstract

Hemiagenesis of the thyroid gland is a rare anomaly in which one thyroid lobe fails to develop during embriological development. Only during investigations for other thyroid diseases leads to the occasional detection of thyroid hemiagenesis. Although hemiagenesis of the thyroid gland is a benign condition, most of the patients reported as having thyroid hemiagenesis had several thyroid disorders.