Dual ectopic thyroid: a report of two cases

1998 ◽  
Vol 112 (4) ◽  
pp. 393-395 ◽  
Author(s):  
Produl Hazarika ◽  
Shahab Ahmed Siddiqui ◽  
Kailesh Pujary ◽  
Parul Shah ◽  
Deepak Ranjan Nayak ◽  
...  
Keyword(s):  
Hyoid Bone ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Lingual Thyroid ◽  
Anterior Midline ◽  
Dual Ectopic Thyroid ◽  
A Site

AbstractEctopic thyroid is an uncommon embryological aberrationcharacterized by the presence of thyroid tissue at a site other than in its usual pretracheal region. Usually it occurs along the path of descent of the developing thyroid primodium from the foramen caecum, commonest being lingual followed by sublingual and in the anterior midline of neck at, or below, the level of the hyoid bone. It is unusual for lingual thyroid to present simultaneously with another ectopic thyroid; reported here are two such cases.

Case of thyroid hemiagenesis and ectopic lingual thyroid presenting as goitre

2008 ◽  
Vol 122 (8) ◽  
Author(s):  
Y S Yang ◽  
K H Hong
Keyword(s):  
World Literature ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Lingual Thyroid ◽  
Thyroid Hemiagenesis ◽  
The World ◽  
Right Lobe ◽  
The Right ◽  
A Site ◽  
Common Manifestation

AbstractObjective:We report an extremely rare case of thyroid hemiagenesis with ectopic lingual thyroid.Method:Case report and review of the world literature concerning thyroid hemiagenesis with ectopic lingual thyroid and heredity.Results:Ectopic thyroid is an uncommon embryological aberration characterised by the presence of thyroid tissue in a site other than its usual, pretracheal location. The lingual thyroid is the most common manifestation of benign ectopic thyroid tissue, but is still a rare clinical entity. Thyroid hemiagenesis is also a very rare abnormality, in which one thyroid lobe fails to develop. We report a case of left thyroid hemiagenesis and goitre in the right lobe in a 26-year-old woman with an ectopic lingual thyroid.Conclusion:To our knowledge, this is the first report in the world literature of thyroid hemiagenesis with ectopic lingual thyroid.

scholarly journals Lingual and Mediastinal Ectopic Thyroid with No Normal Thyroid Gland – A Very Rare Occurrence

2019 ◽  
Vol 27 (3) ◽  
pp. 251-254
Author(s):  
Shyam Kalyan N ◽  
Deepjoy Basu ◽  
Mehak Agarwal ◽  
Dulal Bose
Keyword(s):  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Anatomical Location ◽  
Lingual Thyroid ◽  
Normal Thyroid ◽  
Common Location ◽  
Congenital Condition ◽  
Thyroxine Replacement Therapy ◽  
Dual Ectopic Thyroid ◽  
Upper Mediastinum

Introduction Ectopic thyroid is a  rare  congenital  condition.  Dual ectopic  thyroid  is  rarer still with  only  30  cases  reported  in  literature.  The  most  common  location  is  the  lingual  or  sublingual  region  followed  by  the  hyoid  region.  Instances  of  dual  ectopic  thyroid  with  one  in  lingual  region  and  the  other  in  mediastinum  are very few. Case  Report A  case  of  dual  ectopic  thyroid is presented with  absent  normal  thyroid  in  a  girl  of  14  years  who  presented  with  difficulty  in  swallowing  and  lump  sensation  in  throat.  Ultrasound,  MRI  scan  and  Technetium  99m  pertechnetate  thyroid  scan  were  done.  She  showed  lingual  thyroid  and  thyroid  tissue  in  upper  mediastinum  and  no  thyroid  tissue  in  the  normal  anatomical  location.  Discussion The  discovery  of  mediastinal  ectopic  thyroid  was  incidental.  She  had  subclinical  hypothyroidism  and  was  treated  with  thyroxine  replacement  therapy.

scholarly journals Incidental Finding of Dual Ectopic Thyroid on Computed Tomography Angiography

2017 ◽  
Vol 7 ◽  
pp. 30 ◽  
Author(s):  
Antonio Pierro ◽  
Savino Cilla ◽  
Pietro Modugno ◽  
Giuseppina Sallustio
Keyword(s):  
Computed Tomography ◽  
Patient Management ◽  
Incidental Finding ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Lingual Thyroid ◽  
Ectopic Thyroid Tissue ◽  
Ectopic Tissue ◽  
Normal Thyroid Function ◽  
Dual Ectopic Thyroid

The presence of simultaneous two ectopic foci of thyroid tissue (dual ectopic thyroid) is rare, and few cases have been reported in the literature. The ectopic thyroid tissue is an extremely uncommon embryological aberration due to the alterations occurring during the embryological development with incomplete migration of thyroid precursors. Commonly ectopic thyroid tissue is a midline structures, but the lateral location is possible but very rare. Ectopic thyroid is common in women and can vary in size from a microscopic focus to a few centimeters. The normal process of migration of the thyroid can be interrupted at various levels determining a lingual ectopy, a sublingual ectopic, prelaryngeal ectopy, or mediastinic ectopy. Intrathoracic and subdiaphragmatic organs are other sites where the ectopic thyroid tissue may be present. In most of the cases, ectopic tissue is a lingual thyroid and this condition can be totally asymptomatic, discovered incidentally, or occurs with symptoms such as dysphonia, dysphagia, dyspnea, and hemoptysis. Sublingual or suprahyoid ectopia is rare and even rarer are the cases of two foci of ectopic thyroid tissue simultaneously present. On imaging, the ectopic tissue shows the same characteristics of orthotopic thyroid tissue and similarly can undergo goiterous and cancerous transformation. We report a case of incidental dual ectopic thyroid in lingual and suprahyoid level in a 72-year-old female patient, asymptomatic and with normal thyroid function, who underwent computed tomography (CT) angiography before vascular surgery for the treatment of carotid stenosis. The presence of a lingual thyroid can lead to a difficult and dangerous intubation, with possible fatal consequences. For this reason, the discovery of these abnormalities has totally changed the patient management who has been subjected to endovascular treatment, instead to the classical surgery.

Dual ectopic thyroid: report of a case

2003 ◽  
Vol 117 (7) ◽  
pp. 574-576 ◽  
Author(s):  
Tuncay Ulug ◽  
S. Arif Ulubil ◽  
Faruk Alagol
Keyword(s):  
Thyroid Gland ◽  
Treatment Options ◽  
Thyroid Stimulating Hormone ◽  
Ectopic Thyroid ◽  
Anatomical Location ◽  
Lingual Thyroid ◽  
Neck Swelling ◽  
Anterior Midline ◽  
Dual Ectopic Thyroid ◽  
Base Of The Tongue

Dual ectopic thyroid is very rare. We report a case of dual ectopic thyroid in the lingual and infrahyoid areas in a 20-year-old female patient with no thyroid gland in its normal anatomical location. On physical examination, there was a 7 × 5 cm anterior midline neck swelling just below the hyoid bone and a 2 × 2 cm mass in the base of the tongue. Triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) levels were normal. A thyroid scan with technetium-99m sodium pertechnate confirmed dual ectopic thyroid with no iodine uptake in the normal anatomical location of the thyroid gland. The infrahyoid ectopic thyroid was surgically removed for cosmetic reasons, and the lingual thyroid, which was symptomatic, was left untouched. The importance of thyroid scanning in the evaluation of anterior midline neck swellings and treatment options are discussed.

scholarly journals Submandibular ectopic thyroid gland: an uncommon presentation

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Inès Riahi ◽  
Rim Fradi ◽  
Ibtissem Ben Nacef ◽  
Ahlem Blel
Keyword(s):  
Thyroid Gland ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Lingual Thyroid ◽  
Submandibular Region ◽  
Case Presentation ◽  
Thyroglossal Duct ◽  
Common Presentation ◽  
Ectopic Thyroid Tissue ◽  
Uncommon Presentation

Abstract Background Ectopic thyroid is a developmental anomaly of the thyroid gland of embryological origin. Instead of having a pretracheal situation, thyroid tissue is elsewhere, most commonly in the median cervical line along the course of the thyroglossal duct. Lingual thyroid is the most common presentation. Ectopic thyroid tissue in the submandibular region has been rarely reported. Case presentation We report herein a case of a 65-year-old man admitted to our department with a complaint of a painless swelling in the left submandibular region. Conclusions Thyroid gland ectopia should be considered among the differential diagnoses of submandibular swelling. Ectopic thyroid tissue can present with the same pathology affecting the normal thyroid gland such as malignancy and hyperthyroidism.

A case of pediatric ectopic thyroid in lateral lymph nodes

2015 ◽  
Vol 28 (1-2) ◽  
Author(s):  
Min Kwan Baek ◽  
Dong Young Kim ◽  
Joo Hyun Woo
Keyword(s):  
Lymph Nodes ◽  
Transport Theory ◽  
Thyroid Tissue ◽  
Ectopic Thyroid ◽  
Lymphatic Transport ◽  
Lingual Thyroid ◽  
Lateral Neck ◽  
Duct Cyst ◽  
Cervical Lymph Nodes ◽  
Posterior Triangle

AbstractOn average, ectopic thyroids are positioned in the embryotic decent path that emerges as a lingual thyroid or a thyroglossal duct cyst. It is uncommon for ectopic thyroids to be located in the lateral neck, which only represents 1%–3% of all cases. Any ectopic thyroids that emerge in the posterior lateral neck in pediatric patients should be regarded as an extremely unique case. We report a 13-year-old boy with ectopic thyroid tissue in the cervical lymph nodes with orthotopic euthyroid thyroid. The masses were located on the left posterior triangle area, which were confirmed as histologic benign thyroid tissue without any malignancy in the head and neck. Authors suggest that this case supports the benign lymphatic transport theory of lateral ectopic thyroid.

scholarly journals Ultrasound Imaging of Cervical Anatomic Variants

2021 ◽  
Vol 17 ◽  
Author(s):  
Michael Cordes ◽  
Stephan Coerper ◽  
Torsten Kuwert ◽  
Christian Schmidkonz
Keyword(s):  
Molecular Genetic ◽  
Thyroid Tissue ◽  
Preoperative Assessment ◽  
Parathyroid Glands ◽  
Ectopic Thyroid ◽  
Lingual Thyroid ◽  
Developmental Anomalies ◽  
Ectopic Thyroid Tissue ◽  
Anatomic Variants ◽  
Developmental Variants

: Embryologic developmental variants of the thyroid and parathyroid glands may cause cervical anomalies that are detectable in ultrasound examinations of the neck. For some of these developmental variants, molecular genetic factors have been identified. Ultrasound, as the first-line imaging procedure, has proven useful in detecting clinically relevant anatomic variants. The aim of this article was to systematically summarize the ultrasound characteristics of developmental variants of the thyroid and parathyroid glands as well as ectopic thymus and neck cysts. Quantitative measures were developed based on our own findings and the respective literature. Developmental anomalies frequently manifest as cysts that can be detected by cervical ultrasound examinations. Median neck cysts are the most common congenital cervical cystic lesions, with a reported prevalence of 7% in the general population. Besides cystic malformations, developmental anomalies may appear as ectopic or dystopic tissue. Ectopic thyroid tissue is observed in the midline of the neck in most patients and has a prevalence of 1/100,000 to 1/300,000. Lingual thyroid accounts for 90% of cases of ectopic thyroid tissue. Zuckerkandl tubercles (ZTs) have been detected in 55% of all thyroid lobes. Prominent ZTs are frequently observed in thyroid lobes affected by autoimmune thyroiditis compared with normal lobes or nodular lobes (P = 0.006). The correct interpretation of the ultrasound characteristics of these variants is essential to establish the clinical diagnosis. In the preoperative assessment, the identification of these cervical anomalies via ultrasound examination is indispensable.

scholarly journals Dual Ectopic Thyroid with Normally Located Thyroid: A Case Report

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Bipul Kumar Choudhury ◽  
Uma Kaimal Saikia ◽  
Dipti Sarma ◽  
Mihir Saikia ◽  
Sarojini Dutta Choudhury ◽  
...  
Keyword(s):  
World Literature ◽  
Thyroid Tissue ◽  
Thyroid Function Test ◽  
Primary Hypothyroidism ◽  
Ectopic Thyroid ◽  
Rare Presentation ◽  
Base Of Tongue ◽  
Thyroid Ectopia ◽  
Function Test ◽  
Dual Ectopic Thyroid

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.

scholarly journals Dual ectopic thyroid associated with thyroid hemiagenesis

2018 ◽  
Vol 2018 ◽  
Author(s):  
Shigenori Nakamura ◽  
Teruyuki Masuda ◽  
Masatoshi Ishimori
Keyword(s):  
Congenital Hypothyroidism ◽  
Hormone Replacement ◽  
Thyroid Tissue ◽  
Neck Mass ◽  
Left Lobe ◽  
Ectopic Thyroid ◽  
List Type ◽  
Ectopic Thyroid Tissue ◽  
Thyroid Hemiagenesis ◽  
Dual Ectopic Thyroid

Summary We report a case of a 15-year-old girl with a midline neck mass that was first noted 2 or 3 years previously. She had been treated with levothyroxine (L-T4) for congenital hypothyroidism until 11 years of age. Ultrasonography revealed an atrophic right thyroid (1.0 × 1.6 × 2.6 cm in size) and a mass (2.3 × 1.0 × 3.5 cm in size) in the upper part of the neck. No left lobe of the thyroid was detected. On further evaluation, Tc-99m pertechnetate thyroid scintigraphy and CT showed ectopic thyroid tissue in the lingual region and infrahyoid region. Thus, she was diagnosed as having dual ectopic thyroid and thyroid hemiagenesis. The atrophic right thyroid was thought be non-functional. Treatment with L-T4 was started to reduce the size of the dual ectopic thyroid tissue. This may be the first reported case of dual ectopic thyroid associated with hemiagenesis detected only by ultrasonography. Learning points: Ultrasonography can confirm the presence or absence of orthotopic thyroid tissue in patients with ectopic thyroid. The cause of congenital hypothyroidism should be examined. Clinical manifestation of ectopic thyroid may appear when the treatment with L-T4 is discontinued. Annual follow-up is needed in all children when their thyroid hormone replacement is stopped.

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