A mass in the porta hepatis: A rare presentation of ectopic thyroid

Abstract

Introduction: the neck and chest are the most common sites of ectopic thyroid tissues. Ectopic thyroid tissue is infrequently encountered in the liver or gallbladder. this is a rare presentation of an incidental portal hepatis mass consistent with ectopic thyroid. case report: A 69-yearold female with a medical history significant for hypothyroidism and multiple thyroid nodules, had undergone a total thyroidectomy. On subsequent ultrasound an incidental 3.6 cm porta hepatis mass was noted, with enlargement on computed tomography (ct) scan and magnetic resonance imaging (MrI) scan to 4.6 cm. A complete resection of the porta hepatis mass was performed. Pathology of the porta hepatis mass was consistent with benign ectopic thyroid tissue with nodular hyperplasia. conclusion: this case describes the rare presentation of a porta hepatis mass consistent with an ectopic thyroid. the presence of ectopic thyroid in the porta hepatis is especially rare, and required surgical resection due to increasing size. 1