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![Lymph node metastasis from non-melanoma skin cancer](https://image.oaes.cc/021453e4-4ccd-4bc0-949c-7234c1a020fc/4889.fig.1.jpg)
Figure 1. Assigned lymph node levels of the lateral neck. Level IA: Submental nodes. Level IB: Submandibular nodes. Level IIA: Upper jugular nodes anterior to the spinal accessory nerve. Level IIB: Upper jugular nodes posterior to the spinal accessory nerve. Level III: Mid jugular nodes. Level IV: Lower jugular nodes. Level VA: Posterior triangle nodes superior to the level of the inferior border of cricoid cartilage. Level VB: Posterior triangle nodes inferior to the level of the inferior border of cricoid cartilage. Level VI: Central compartment nodes.