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Identification and Protection of the Recurrent Laryngeal Nerve during Transoral Robotic Thyroidectomy
Published on: October 24, 2025
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Intraoperative identification of the human communicating nerve during thyroidectomy
Benjamin L Hodnett1, Nicole C Schmitt2, Parthasarathy D Thirumala3
1Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Journal of Surgical Case Reports
|December 16, 2015
Summary
The human communicating nerve (HCN), a link between laryngeal nerves, was identified during thyroid surgery. This extralaryngeal variant
Area of Science:
- Anatomy
- Neurology
- Surgical Anatomy
Background:
- The human communicating nerve (HCN) is an anatomical connection between the superior and recurrent laryngeal nerves.
- Previous descriptions of the HCN are primarily from cadaveric studies.
- The functional significance of the HCN is not well understood.
Observation:
- An extralaryngeal variant of the HCN was identified during a thyroidectomy procedure.
- The identified nerve variant was stimulated intraoperatively.
- This represents a novel intraoperative finding.
Findings:
- The extralaryngeal variant of the human communicating nerve was successfully identified and stimulated in a live surgical setting.
- This intraoperative identification is the first reported instance of this specific anatomical variant.
- The functional role of this extralaryngeal HCN variant during thyroidectomy remains to be elucidated.
Implications:
- Intraoperative identification of the extralaryngeal HCN variant may enhance surgical precision during thyroidectomies.
- Understanding this variant could improve the preservation of laryngeal nerve function.
- Further research is needed to clarify the functional significance and clinical relevance of the extralaryngeal HCN.

