New Variation of Right Recurrent Laryngeal Nerve
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Case Report
From 2,094 patients undergoing bilateral total or near-total thyroidectomy, central neck lymphadenectomy, or thyroid surgery, we assessed 2,710 recurrent laryngeal nerves and detected three types of variation in 274 patients (Table 1). The first type was the division of the laryngeal nerve into an extralaryngeal branch before entering the larynx. The second type was a right non-recurrent laryngeal nerve. The third type was detected in right recurrent laryngeal nerves of five females and has not been previously reported. The new variation consisted of an ascending intracranial branch, except for the tracheal, esophageal, and laryngeal branches. These five patients included four patients undergoing a total thyroidectomy plus central lymph node dissection for papillary thyroid cancer and one patient undergoing bilateral total thyroidectomy for bilateral nodular goiter.....


https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4425764/
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