Cancer Information: Larynx Cancer Larynx cancer is a cancer that effects the larynx, or voice box, in people; it can also be called laryngeal cancer. The cancer occurs most frequently in people over the age of fifty-four and in black males. The larynx is approximately two inches long and is located below the nose passage way and above the trachea. Tumors can develop anywhere in the three parts of the larynx, the glottis, supraglottis, and subglottis. When the cancer spreads to other parts of the body it is called metastatic cancer. Sympto ....