sides and mediastinal extension on the left side up to the level of D4 vertebra.The mass exerted pressure effect on the nearby structures with displacement of the left brachiocephalic vein, left common carotid artery, left subclavian artery, left mediastinal pleura, trachea, esophagus, and right brachiocephalic artery.There was no significant infiltration of the adjacent mediastinal structures (Fig. 1).Fine needle aspiration cytology (FNAC) of the cervical thyroid was done and reported to be colloidal nodular goiter with cystic degeneration-Bethesda 2. Thyroidectomy IntroductIonEctopic thyroid (ET) is the presence of functioning thyroid tissue found in sites other than the normal pretracheal position. 1Abnormal descent during the embryological period is the cause of ectopic thyroid tissue (ETT).The prevalence of ETT is one in 1,00,000-3,00,000 among the general population.It is usually located along the path of the thyroid gland but can also be found in other locations.About 90% of ET presents as lingual thyroid, followed by the anterior neck, lateral neck, mediastinum, abdomen, and pelvis. 1 Only at times of physiological stress do the symptoms manifest.Less than 1% of ET is reported in the mediastinum. 2ediastinal goiters usually remain asymptomatic, are associated with normal thyroid function, and may be incidentally discovered on chest X-ray. 1 Imaging is essential for the diagnosis.Ectopic goiter is a preoperative predictive factor of the necessity for excision by sternotomy. 3 case descrIptIonA 70-year-old female, a known diabetic and hypertensive, was referred to the institution by her diabetologist after a routine checkup revealed a mediastinal tumor on chest X-ray.The patient reported that she noticed a neck swelling for the last 1.5 years; however, she was asymptomatic.Clinical examination revealed a goiter moving with deglutition, and the lower border could not be felt during palpation.Video laryngoscopy revealed normal mobility of both vocal cords.Her thyroid function tests revealed euthyroid status.Computed tomography (CT) neck and chest (plain and contrast) showed a multinodular goiter involving both lobes and isthmus with retrosternal extension on both 1,2,4,
Jagannathan et al. (Tue,) studied this question.