Surgery N-3 TNM staging of head and neck tumors shows: A Metastasis in lymph nodes >2 cm B Metastasis in lymph nodes >5 cm C Metastasis in a lymph node >6 cm D None 💡 Explanation N-3 TNM staging of head and neck tumors shows: ✓ Correct Answer: C. Metastasis in a lymph node >6 cm