Abstract
We observed 66 cases of polypoid vocal cord and some cases of vocal cord edema correlated with laryngeal cancer. Conclusions are as follows.
1. Almost all patients of polypoid vocal cord were over 40 years of age, smoker, and vocal abuser.
2. Histopathological findings of polypoid vocal cord were characteristic with epithelial hyperplasia and dysplasia, and subepithelial edema. inflammatory cell infiltration, telangiectasia and increasing of connective tissue.
3. Vocal cord edema on irradiated larynx had a tendency to disappear spontaneously.
4. Polypoid vocal cord didn't disappear spontaneously.
5. Circulatory disturbance of the vocal cord makes a vicious circle and causes polypoid vocal cord.
