Incidental Finding of Triple Ectopic Thyroid: Case Report and Review of the Literature

Document Type : Case report

Authors

1 Medical Imaging Department, Saint George Hospital University Medical Center, Beirut, Lebanon

2 Lebanese University, Beirut, Lebanon

3 University of Balamand, Beirut, Lebanon

4 Saint George University of Beirut, Beirut, Lebanon

Abstract

Ectopic thyroid tissue is a rare congenital anomaly, with the presence of three simultaneous ectopic foci being exceedingly rare. We describe a case of a totally asymptomatic 26-year-old male discovered to have triple ectopic thyroid following incidental elevated thyroid-stimulating hormone (TSH) levels. Subsequent ultrasonography of the neck showed an absent thyroid gland in its conventional location. A Technetium-99m pertechnetate (Tc-99m) thyroid scan showed three distinct foci of radiotracer uptake in the upper cervical, lingual, and sublingual regions, corresponding to triple ectopic thyroid. An extensive review of the literature was conducted to provide a broader understanding and deeper insights into this uncommon condition. This case underscores the pivotal role of Technetium-99m thyroid scanning in diagnosing triple ectopic thyroid, particularly in instances where the orthotopic thyroid gland is absent. A comprehensive understanding of this rare entity is indispensable for radiologists and clinicians, enabling accurate diagnosis and informed decision-making regarding the appropriate therapeutic strategies.

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References

  1. Kumar Choudhury B, Kaimal Saikia U, Sarma D, Saikia M, Dutta Choudhury S, Barua S, Dewri S. Dual ectopic thyroid with normally located thyroid: a case report. J Thyroid Res. 2011; 2011:159703.
  2. Konde SR, Singh H Retd, Pawar A, Sasane A. Triple ectopic thyroid. Med J Armed Forces India. 2012; 68(2):173-5.
  3. Hua M W, Lin WC, Wang CC. Triple ectopic thyroid excision by robotic surgery via trans-oral and post-auricular approach report of a case. Ann Clin Case Rep. 2019; 4(1):1680.
  4. Rosen RD, Sapra A. Embryology, Thyroid. In: StatPearls. Treasure Island (FL): StatPearls Publishing. 2024.
  5. Fernández LP, López-Márquez A, Santisteban P. Thyroid transcription factors in development, differentiation and disease. Nat Rev Endocrinol. 2015; 11(1): 29-42.
  6. Zander DA, Smoker WR. Imaging of ectopic thyroid tissue and thyroglossal duct cysts. Radiographics. 2014; 34(1): 37-50.
  7. Nilegaonkar S, Naik C, Sonar S, Hirawe D. Triple ectopic thyroid: A rare entity. Indian J Nucl Med. 2011; 26(4): 194.
  8. Pierro A, Cilla S, Modugno P, Sallustio G. Incidental Finding of Dual Ectopic Thyroid on Computed Tomography Angiography J Clin Imaging Sci. 2017; 7: 30.
  9. Mchonde GJ, Nondoli HG, Hirakawa M. Triple ectopic thyroid associated with normally located pretracheal thyroid gland: A rare entity. Edorium Journal of Anatomy and Embryology. 2016; 3: 34-8.
  10. Kumar A, Arumugam M, Nilakanta A. Triple ectopic thyroid-a rare case report. International Surgery Journal. 2021; 8(8): 2457-9.
  11. Kuramoto R, Oikawa K, Fujita K, Oridate N, Fukuda S. Triple Ectopic Thyroid: A Case Report and Review of Literature. Thyroid Disorders Ther. 2013; 2: 126.
  12. Agrawal K, Patro PSS, Pradhan P. Triple Ectopic Thyroid Detected on SPECT/CT: A Rare Case Report. Clin Nucl Med. 2019; 44(7):E453-5.
  13. Rahalkar M, Rahalkar A, Solav S. A rare case of triple thyroid ectopia. Indian J Endocrinol Metab. 2014; 18(2): 238.
  14. Jain A, Pathak S. Rare developmental abnormalities of thyroid gland, especially multiple ectopia: A review and our experience. Indian J Nucl Med. 2010; 25(4): 143.
  15. Passah A, Arora S, Damle NA, Sharma R. Triple Ectopic Thyroid on Pertechnetate Scintigraphy. Indian J Endocrinol Metab. 2018; 22(5): 712.
  16. Barai S, Bandopadhayaya GP, Kumar R, Malhotra A, Halanaik D. Multiple ectopic thyroid masses in a hypothyroid child. Pediatr Radiol. 2004; 34(7): 584.
  17. Ibrahim NA, Adewale OM. Lateral cervical ectopic thyroid masses with eutopic multinodular goiter: an unusual presentation. Hormones (Athens). 2009; 8(2): 150-3.
  18. Pitts S, Sood P, Derrwaldt R. Triple ectopic thyroid: A rarely described entity. Journal of Case Reports and Images in Medicine. 2022; 5-9.
Asia Oceania Journal of Nuclear Medicine and Biology
Volume 12, Issue 2
July 2024
Pages 179-184

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