Dual Ectopic Thyroid: An Uncommon Imaging Diagnosis

Abstract

ABSTRACTEctopic thyroid means presence of thyroid gland tissue in abnormal position. Dual ectopic thyroid is the presence of thyroid gland tissue in two different abnormal locations. It is a rare entity. We report a case of 17-year-old girl who presented with a gradually increasing swelling in the upper neck. Her thyroid tests were abnormal, with mildly reduced T3 and T4 levels and increased TSH levels. Ultrasound revealed an isoechoic homogenous lesion in the intermuscular planes, in the infrahyoid neck. Contrast-enhanced computed tomography (CECT) of neck was performed which showed two similarly homogenously enhancing lesions, one in the base of tongue and another in the infrahyoid neck. Thyroid gland was not seen in its normal location. On the basis of these findings, diagnosis of dual ectopic thyroid was made. Patient was managed with thyroid hormone replacement therapy to manage hypothyroidism and decrease the size of swelling.How to cite this articlePrabhakar N, Gupta V, Panda N, Khandelwal N. Dual Ectopic Thyroid: An Uncommon Imaging Diagnosis. J Postgrad Med Edu Res 2015;49(2):83-84.