Unknown Primary Tumor cN2 TNM Finding v8

**Semantic type:** Finding

**Definition:** Unknown primary tumor with metastasis in a single ipsilateral cervical lymph node larger than 3 cm but not larger than 6 cm in greatest dimension and ENE (extranodal extension)(-); or metastases in multiple ipsilateral cervical lymph nodes, none larger than 6 cm in greatest dimension and ENE(-); or metastases in bilateral or contralateral cervical lymph nodes, none larger than 6 cm in greatest dimension, ENE(-). (from AJCC 8th Ed.)