system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Most common tumor to produce metastasis to cervical lymph nodes -
assistant
The correct answer is  Ans is "b" i.e. Nasopharyngeal carcinoma Note: Glottic carcinoma never metastasizes to lymph nodes and carcinoma lip metastasizes rarely and very late