Abstract
The Zuckerkandl tubercle is a residue from the embryological development of the thyroid gland. Although it is undeniably well known in surgery, this is not so among otolaryngologists. Our objective is to highlight the importance of the Zuckerkandl tubercle, as it has proven to be a reliable point of reference to locate the upper parathyroid, the lower thyroid artery and the recurrent nerve. In order to study the Zuckerkandl tubercle, we made a prospective analysis of the posterolateral border of the thyroid lobes in 107 thyroidectomies (88 total thyroidectomies and 19 hemithyroidectomies) carried out by the same surgeon; in total, 195 thyroid lobes were analysed. The Zuckerkandl tubercle was certainly detected in 155 thyroid lobes (79.48 %). The Zuckerkandl tubercle was most frequent in the right thyroid lobe (P = 0.06). When the Zuckerkandl tubercle was present, we localised the upper parathyroid due to its relationship with the tubercle in 80 right thyroid lobes (95.23 %) and in 65 left (91.54 %). On 147 occasions (94.83 %), the recurrent nerve was directed towards the cricothyroid membrane beneath the Zuckerkandl tubercle, laterally to the tracheal surface in relation with the Berry ligament. The lower thyroid artery and some of the distal branches, such as the recurrent nerve, also ran under the Zuckerkandl tubercle. The areolar tissue underlying the Zuckerkandl tubercle is difficult to dissect, and so this protuberance constitutes a surgical difficulty but it is fundamentally helpful to find those important structures that must be preserved in thyroid surgery.
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Gil-Carcedo, E., Menéndez, M.E., Vallejo, L.A. et al. The Zuckerkandl tubercle: problematic or helpful in thyroid surgery?. Eur Arch Otorhinolaryngol 270, 2327–2332 (2013). https://doi.org/10.1007/s00405-012-2334-7
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DOI: https://doi.org/10.1007/s00405-012-2334-7