Incidental Finding of Dual Ectopic Thyroid on Computed Tomography Angiography (original) (raw)
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Dual thyroid ectopia: A pictorial case series and review of literature
World Journal of Nuclear Medicine, 2020
Ectopic thyroid (ET) is a developmental anomaly of the thyroid gland with the presence of thyroid tissue at sites other than the normal cervical location anterior to second and third tracheal ring due to abnormal migration of the gland. It may be found along the path of descent of the developing thyroid primordium from the foramen caecum to the isthmus of the thyroid and up to the base of the diaphragm. Dual thyroid ectopia, where ET tissue is simultaneously present at two different abnormal locations, is a very rare developmental defect. Only a few cases have been reported worldwide. ET is predominantly seen in females and during puberty when the hormonal demand is high. Patients with ET may remain asymptomatic or present with swelling in the neck, symptoms such as dysphagia, dysphonia, dyspnea, and features of hypothyroidism. The diagnosis is usually made on clinical examination, laboratory tests, imaging studies, and cytology. Careful clinical evaluation is essential as ET may be...
Dual Thyroid Ectopy, Sublingual and Pretracheal
OMICS Journal of Radiology, 2015
Ectopic thyroid tissue is a rare congenital anomaly with extremely rare occurrence of dual ectopy. Authors present a case of a 13 year-old girl with anterior neck swelling since one year. Contrast enhanced CT demonstrated absence of normally located, bilobed thyroid gland, Instead two foci of ectopic thyroid tissue were seen in the lingual and pretracheal region. Imaging workup is of great value in diagnosing this rare entity.
European Journal of Radiology Extra, 2003
Ectopic thyroid tissue can be found anywhere from foramen cecum and the normal cervical position of the thyroid gland. It occurs most commonly at the base of tongue, known as lingual, followed by sublingual and the anterior midline of neck. We present the patient with dual ectopic thyroid, one of them is at the base of tongue and the other is in the left submandibular region. The purpose of this report is to demonstrate the findings of ultrasonography, computed tomography, magnetic resonance imaging and scintigraphy and to emphasize the importance of performing a thyroid scan in every case of thyroid ectopia to accurately identify all sites of functioning thyroid tissue. #
Clinical Nuclear Medicine, 2014
Dual ectopic lingual and sublingual thyroid gland is an extraordinarily rare condition. We present 1 patient with subclinical hypothyroidism. The clinical examination revealed that the thyroid gland was not palpable in its usual cervical location, whereas ultrasonography confirmed an empty thyroid bed without any ectopic thyroid tissue in the rest of the neck. The final diagnosis of dual ectopic lingual and sublingual thyroid was established by ultrasound examination through the mouth floor and confirmed by scintigraphy and CT thereafter.
Dual ectopic thyroid – A rare case report
IP innovative publication pvt. ltd, 2019
ntroduction: Congenital anomalies are very uncommon in thyroid gland and dual ectopic thyroid (DET)is even more rare entity. Till date only about 30 cases of DET have been reported in the world literature, majority of them being in the anterior midline neck region: Case Report: Here we report a case of a seven year old male child with dual ectopic thyroid in lingual and subhyoid regions with mild hypothyroidism. The diagnosis of DET was based on CT scan findings and FNAC of the subhyoid swelling. The normal thyroid gland was not visualized in the neck on CT scan. The microscopyof the aspirate revealed abundant thick and thin colloid with normal thyroid follicular cells arranged in small sheets and clusters along with cyst macrophages confirming the swelling to be of thyroid origin. Conclusion: Ectopic thyroid tissue is a rare entity and dual ectopic thyroid with absence of thyroid gland in its normal location is extremely rare. Clinical, radiological and cytological analysis helps in arriving at a diagnosis
Endocrinology & Metabolism International Journal, 2018
Ectopic thyroid tissue is a rare congenital anomaly due to developmental defect in thyroid gland. Ectopic, accessory, or aberrant thyroid refers to the presence of thyroid tissue in locations other than normal pretracheal position in the anterior neck region. The thyroid dysgenesis occurs due to abnormal organogenesis of the thyroid gland leading to morphological variations, such as hypoplasia, hemiagenesis, and agenesis with ectopic thyroid being the most common form of thyroid dysgenesis. Here, we are presenting a case of dual thyroid in the form of ectopic or accessory thyroid tissue along with normal location thyroid found during a routine dissection of a female cadaveric body. The ectopic thyroid tissue was seen as an oval structure about 2.2 cm x 1.6cm x 1.0 cm, situated in the midline near the hyoid bone. It was located 10.2 cm superior to a normally located thyroid gland and consistent with the track of the thyroglossal duct. The ectopic thyroid tissue could be asymptomatic or it could present with any disorder affecting the main thyroid gland including malignancy. The significance of this cadaveric case report and a brief review of the literature on normal location thyroid gland and ectopic thyroid highlight an uncommon but potentially important congenital anomaly that can be a source of diagnostic confusion and a challenge for therapeutic management.
Dual Ectopic Thyroid with Normally Located Thyroid: A Case Report
Journal of Thyroid Research, 2011
Dual ectopic thyroid is a rare presentation of thyroid ectopia. Only a few cases have been reported in the world literature. Dual ectopic thyroid in the presence of a normally located thyroid is even rarer. We report a case of dual ectopic thyroid in the lingual and submandibular areas in a seventeen-year-old female with hypoplastic thyroid gland in its normal location. The patient presented with a midline swelling at the base of tongue with dysphagia. Thyroid function test revealed primary hypothyroidism. Ultrasonography of the neck showed hypoplastic thyroid in its normal location. A thyroid scan with Technetium-99 m pertechnate showed two intensely hyperfunctioning foci of ectopic thyroid tissue at a higher level in the midline consistent with dual ectopic thyroid, one at the base of tongue and the other in submental region. No uptake was seen in the normal bed.
Dual Ectopic Thyroid: A Case Report in a 12 years old girl
Bangladesh journal of nuclear medicine, 2022
Ectopic thyroid gland is uncommon in our routine clinical practice and among them dual ectopic thyroid appears to be rarer. We report an unusual case of two different locations of ectopic thyroid tissues in the lingual and left submandibular regions of a 12 years old girl who presented with painless, nodular left upper neck swelling. Provisionally, the patient was diagnosed by high resolution ultrasound (HRUS) of neck and confirmed by radionuclide thyroid scan. Thyroid scintigraphy with 99m Tc-pertechnetate is highly sensitive but minimally invasive procedure to detect and image the ectopic thyroid tissue with fairly good specificity and negligible radiation exposure.