 A 0-degree endoscope was used to take pictures of what was apparently a recurrence of tumor along the right true vocal fold extending into the anterior arytenoid area and extending about 1 cm below into the subglottis. 
A 0 - degree endoscope was used to take pictures of what was apparently a recurrence of tumor along the right true vocal fold extending into the anterior arytenoid area and extending about 1 cm below into the subglottis .