Hi,
The symptoms of laryngeal cancer depend on the location of the tumor.Tumors in the supraglottal region above the
vocal cords often cause more, but less distinct symptoms. These include:persistent sore throat,pain when swallowing,difficulty swallowing or frequent choking on food,bad breath,lumps in the neck,persistent ear pain (called referred pain; the source of the pain is not the ear) and change in voice quality.
ref:http://findarticles.