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Updated: Jul 16, 2026

Dissection, MicroCT Scanning and Morphometric Analyses of the Baculum
Published on: March 19, 2017
The Zuckerkandl tubercle
Gianpiero Gravante1, Daniela Delogu, Anna Rizzello
1General Surgery Department, University of Rome Tor Vergata, 00043 Ciampino (Roma), Rome, Italy. ggravante@hotmail.com <ggravante@hotmail.com>
Abstract:
Identification and preservation of the recurrent laryngeal nerve is a major concern during thyroidectomies. The Zuckerkandl tubercle is an anatomic landmark that can be used for this purpose. It is generally found in 63% to 80% of patients undergoing thyroidectomy and is located between the superior and inferior lobes and points toward the tracheoesophageal groove. It is classified into three grades according to size: I <.5 cm, II .5 to 1 cm, III >1 cm. A grade III tubercle, present in 45% of patients, is sometimes associated with significant pressure symptoms in otherwise small-sized goiters.
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