Inflammation of the larynx that leads to temporary dysfunction and voice hoarseness. The larynx is the portion of the airway between the pharynx (mouth and upper throat) and the trachea (windpipe). It contains the vocal cords as well as the ligaments and cartilage that support the vocal cords and allow them to function. The disorder is most commonly caused by viral infections and usually lasts several days. Hoarseness that does not go away within 2 weeks should be evaluated by a medical provider to rule out the possibility of laryngeal cancer or other serious disorder.