Author used 87 rabbits for experiment, and corrosion was produced at the second constriction of the esophagus by an application of 10% NaOH. This was treated with penicillin and cortison to find out the effect of prevention of esophageal stenosis and the favorable time for its treatment.
Treatment of corticosteroid for corrosive lesions of the esophagus is desirable to begin as promptly as possible. In the animals treated from 3 days after lapse of corrosion started, a good effect was found only in a few of the animals.