Template:Radiation Oncology/Head & Neck/Node staging-7thEd
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- NX - Cannot be assessed
- N0 - No regional lymph nodes metastasis
- N1 - Single ipsilateral lymph node, <= 3cm in greatest dimension
- N2
- N2a - Single ipsilateral lymph node, 3-6 cm in greatest dimension
- N2b - Multiple ipsilateral lymph nodes, <= 6cm in greatest dimension
- N2c - Bilateral or contralateral lymph nodes, <= 6cm in greatest dimension
- N3 - Lymph node(s) >6 cm in greatest dimension