ObjectiveThe tubercle of Zuckerkandl (TZ) is a lateral projection from the thyroid lobe in the vicinity of the extralaryngeal termination of the recurrent laryngeal nerve (RLN), which is a very useful landmark for identification of the RLN during thyroidectomy. The purpose of the present study was to test our hypothesis that the TZ is more consistently found and is larger on the right than on the left side, and to investigate the frequency of anatomic variations of the TZ.
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