Triple ectopic thyroid associated with normally located pretracheal thyroid gland: A rare entity (original) (raw)
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A rare case of triple thyroid ectopia
Indian Journal of Endocrinology and Metabolism, 2014
Various anomalies of thyro-glossal duct have been described, in which the duct may form a cyst or may present as a solid nodule to form an ectopic gland. The ectopic gland can develop along the tract of the duct to give rise to ectopic lingual, sublingual (pre-hyoid) or sub-hyoid (pyramidal) gland, with or without normal pre-tracheal thyroid gland.There are a few reports of double ectopia of thyroid but triple ectopia of thyroid is extremely rare. We have come across a case of triple thyroid ectopia, i.e., thyroid tissue at three locations along the tract of descent of thyro-glossal duct on CT, which hast been rarely reported in the world literature, and hence this report.
Triple ectopic thyroid-a rare case report
International Surgery Journal, 2021
The ectopic tissue of the thyroid gland along the descent of thyroglossal duct is a rare congenital aberration with or without the presence of normal thyroid gland. Single or dual ectopic thyroid has been reported. Three ectopic focuses at different locations are extremely rare. We present a rare case report of twenty years old female who presented with swelling over the anterior aspect of the neck mimicking thyroglossal cyst. Up on imaging evaluation ectopic thyroid at three different levels were diagnosed by computed tomography (CT) neck. Hence surgery was avoided and patient was managed with thyroxine supplement and follow up.
Multiple Thyroid Ectopia with a Normally Located Tyroid: Can It be a Hereditary Disorder?
Journal of Advances in Medical and Pharmaceutical Sciences, 2015
Heterotopic thyroid tissue-also called as ectopic thyroid-is a rare developmental anomaly. Above all, multiple ectopic thyroid glands including an intrapulmunary one are extremely rare. A fourty seven years old female patient has been admitted to our clinic with a 12 mm pulmonary nodule detected in the lower lob anterobasal segment of her right lung while she was under preoperative investigation for recurrent multinodular goiter (MNG). We have learned that she had undergone thyroidectomy 31 years ago and MNG has occurred in the residual gland. Her sister had a history of operations both for orthotopic MNG and multiple ectopic thyroid; and also her mother had MNG but has not been investigated in terms of an ectopic gland. In the operative exploration, we have found the mentioned mass at the inferior part of middle lobe and performed a wedge resection. Pathologic examination of the nodule revealed a 1 cm gray-yellow colored well circumscribed thyroid tissue with the characteristics of colloid goiter. It was positive for Thyroid transcription factor-1 and Thyroglobulin in immunohystochemical staining. Interestingly, a sublingual ectopic thyroid tissue was detected by Tc99 scintigraphy at the postoperative period. Case Study
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.
Ectopic thyroid tissue: anatomical, clinical, and surgical implications of a rare entity
European Journal of Endocrinology, 2011
Ectopic thyroid tissue is a rare entity resulting from developmental defects at early stages of thyroid gland embryogenesis, during its passage from the floor of the primitive foregut to its final pre-tracheal position. It is frequently found around the course of the thyroglossal duct or laterally in the neck, as well as in distant places such as the mediastinum and the subdiaphragmatic organs. Although most cases are asymptomatic, symptoms related to tumor size and its relationship with surrounding tissues may also appear. Any disease affecting the thyroid gland may also involve the ectopic thyroid, including malignancy. The clinician must distinguish between ectopic thyroid and metastatic deposits emerging from an orthotopic gland, as well as other benign or malignant masses. Thyroid scintigraphy plays the most important role in diagnosing ectopy, but ultrasonography contributes as well. In cases of symptomatic disease, surgery is the treatment of choice, followed by radioiodine a...
A case of hemiagenesis of thyroid with double ectopic thyroid tissue
Indian journal of endocrinology and metabolism, 2013
Developmental abnormalities of the thyroid gland are very rare. The most common abnormalities include ectopic thyroid tissues that are commonly seen in lingual or sublingual location, agenesis, and hemiagenesis of the thyroid gland. These developmental defects may or may not be associated with thyroid dysfunction. Our case is an 18-year-old male who presented with swelling in the neck of 4-year duration. Clinical examination revealed an oval-shape swelling in the left side of the thyroid gland. The ultrasound and the nuclear scan report revealed the presence of thyroid hemiagenesis of the right lobe with isthmus along with double ectopic thyroid tissue at suprahyoid and infrahyoid region. His thyroid function test showed elevated thyroid-stimulating hormone (TSH) and normal free T4. We report a very rare case of thyroid hemiagenesis with double ectopic thyroid tissue; and to the best of our knowledge, this is the first report in the world literature.