CT of the larynx can never replace laryngoscopy. For example, the initial symptoms of the larynx, pharyngeal mucosal hypertrophy, laryngeal congestion and edema, the location of ulcers, swelling and the role of the swelling to take a biopsy and send it to the pathology, which can not be replaced by CT of the larynx. And also can be found, such as vocal cord paralysis, cricoarytenoid dislocation, pharyngeal foreign body removal, in the clinical have very obvious practical significance. Of course, laryngeal CT is also laryngoscopy can not be replaced, for the laryngeal tissue within the situation and the scope of lesion invasion, with clinical practical applications, so each test has its corresponding indications, are irreplaceable.