Embryological remnants of the thyroid gland and their significance in thyroidectomy

Abstract

Thyroid gland has three main embryological remnants: pyramidal lobe, tubercle of Zuckerkandl and thyrothymic remnants. They are commonly missed or misidentified during dissection. Each of these remnants plays a critical role in thyroidectomy as they help to identify the relevant anatomy and therefore help prevent accidental damage to other structures in close proximity during dissection. In this article, we describe the current knowledge of each of these remnants and their significance in thyroidectomy. Conclusion: It is important that all these remnants are objectively looked for and removed during surgery in order to prevent recurrences.