What is the anatomy of the level III group of lymph nodes in neck dissection?

Updated: Aug 19, 2020
  • Author: Ron Mitzner, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Answer

Level III nodes are located between the hyoid superiorly and a horizontal plane defined by the inferior border of the cricoid cartilage. The sternohyoid muscle marks the anterior limit of level III, and the posterior border of the sternocleidomastoid muscle is the posterior border. Level III most commonly receives metastasis from cancers that originate in the oral cavity, nasopharynx, oropharynx, hypopharynx, and larynx. See the image shown below.

Selective neck dissection levels II-IV. Selective neck dissection levels II-IV.

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