Hoarseness. From viral laryngitis to glottic cancer.

Hoarseness indicates an abnormality at the level of the glottis. This symptom may result from either structural or physiologic disorders. The differential diagnosis is lengthy and includes both benign and malignant diseases. History taking and physical examination, particularly laryngeal visualization, provide key clues. Careful and complete examination is always recommended, because airway obstruction can in some situations quickly follow hoarseness.