Figure 1.

A. Electronic laryngoscopy revealed a right smooth ventricular band mucosal swelling that covered the right vocal cord, and caused a severe restriction of the movement of the right vocal cord and ventriculus larynges to become shallow. B. After operation, an electronic laryngoscopic image showed that the right vocal cord was exposed, the right vocal cord mucosal became hyperemia and swelling, bilateral ventriculus larynges size were basically identical and the movement of the right vocal cord was good.