Which anatomical feature of the thyroid lateral lobe is considered the single most reliable landmark for identifying the recurrent laryngeal nerve during thyroidectomy?

• A Suspensory ligament of Cooper
• B Ligament of Berry
• C Inferior thyroid tubercle
• D Tubercle of Zuckerkandl ✓

Explanation

The tubercle of Zuckerkandl is the posteromedial projection of the lateral lobe formed by fusion of the medial and lateral thyroid anlagen. The recurrent laryngeal nerve consistently passes deep to it, at the point where the nerve enters the larynx beneath the inferior constrictor near Berry's ligament. Identifying this unpaired posterior projection directs the dissection to the nerve while protecting the parathyroids, which lie anterior to the plane of the nerve here. Berry's ligament is where the nerve is most densely adherent, not the primary search landmark.

Reference: Sabiston Textbook of Surgery, 21st ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.