In stage III laryngeal cancer, one of the following is found: (1) cancer is in the larynx only and the vocal cords do not move normally; cancer may have spread to tissues next to the larynx; cancer may have spread to one lymph node on the same side of the neck as the original tumor and the lymph node is smaller than 3 centimeters; or (2) cancer is in one area of the larynx, the vocal cords move normally, and cancer is found in one lymph node on the same side of the neck as the original tumor; the lymph node is smaller than 3 centimeters; or (3) cancer is in more than one area of the larynx or in the vocal cords (which may not move normally) and in one lymph node on the same side of the neck as the original tumor; the lymph node is smaller than 3 centimeters.