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IJAR.2017.491

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Type of Article:  Original Research

Volume 6; Issue 1.1 (January 2018)

Page No.: 4861-4865

DOI: https://dx.doi.org/10.16965/ijar.2017.491

AGENESIS OF ISTHMUS OF THYROID GLAND – A RARE CASE REPORT IN AN ADULT MALE CADAVER

Vishali.N *1, G. Rajathi 2, N. Charanya 2, S.P. Thangaraj 3.

*1 Associate Professor, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, ECR, Kancheepuram District, Chennai, India.

2 Assistant Professor, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, ECR, Kancheepuram District, Chennai, India.

3 Professor and Head, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, ECR, Kancheepuram District, Chennai, India.

Address for Correspondence: Dr. Vishali. N, Associate Professor, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, ECR, Kancheepuram District, Chennai – 603 102, India. E-Mail: drvishalin@gmail.com

Abstract 

Introduction: The thyroid gland is a highly vascular endocrine gland. The congenital anomalies of thyroid gland includes thyroglossal cyst, ectopic thyroid tissue and rarely agenesis of one of the lobes or isthmus of thyroid gland. One such rare finding observed in the present study which is highly relevant both to the non – operative clinician and in operative surgery.

Materials and Methods: During routine dissection on an adult  male cadaver in the department of anatomy, Ponnaiyah Ramajayam Institute of medical sciences, Chennai, we report agenesis of isthmus of thyroid gland.

Results and Discussion: The lobes of the thyroid gland appear to be normal in size, shape and position. Another important rare finding was the presence of levator glandulae thyroideae which arises from the left lobe to the hyoid bone. Agenesis of isthmus and presence of levator glandulae thyroideae from the left lobe might occur due to high separation of thyroglossal duct.

Conclusion:    The knowledge of normal anatomy and its variation of this vital endocrine gland is highly essential for physicians and surgeons for the repair of any thyroid ailment and also during tracheostomy.

KEY WORDS: Isthmus, Tracheostomy, Thyroglossal Duct, Levator Glandulae Thyroideae.

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Cite this article: Vishali.N, G. Rajathi, N. Charanya, S.P. Thangaraj. AGENESIS OF ISTHMUS OF THYROID GLAND – A RARE CASE REPORT IN AN ADULT MALE CADAVER. Int J Anat Res 2018;6(1.1):4861-4865. DOI: 10.16965/ijar.2017.491