<prompt> Which of the following is the most common tumour to produce metastasis to cervical lymph nodes?Glottic carcinomaNasopharyngeal carcinomaCarcinoma base of tongueCarcinoma lip  <response>: Cervical nodal metastases may be the only manifestation of nasopharyngeal cancer.Nodal metastases are seen in 75 of the patients, when first seen, about half of them with bilateral nodes.Distant metastases involve bone, lung, liver and other sites. 