Thyroid Hemiagenesis with Ipsilateral Parathyroid Adenoma; Case report with Review of the Literature
Thyroid hemiagenesis (THA) is a rare congenital anomaly in which one lobe of thyroid gland fails to develop during embryological stage.Agenesis may be unilateral, 4 post backdrop stand total or isthmic.Left thyroid lobe is more commonly involved than right lobe in hemiagenesis.Agenesis of the isthmus was seen in 50% of cases.Left sided hemiagenesis