This video shows the function  of a larynx with a left true vocal cord paralysis in a 89 year old female with recurrent papillary carcinoma.  The patient had a total thyroidectomy performed 2 1/2 years ago.  During the initial surgery, cancer was stripped off the left recurrent laryngeal nerve.  The patient had a Stage III carcinoma.  She received initial I-131 treatment and then was lost to follow-up.