Abstract
Four hundred and thirty-six cases with phoniatric disorders were examined at our special clinic during January 1983 to December 1985. They were analyzed statistically, and the following results were obtained: 1) The main diseases were vocal cord nodules, recurrent nerve palsy, vocal cord polyp and polypoid vocal cord. The cases with vocal cord nodules showed a significant difference between both sexes. It is supposed that this difference had a relation to vocal abuse. 2) The causes of the recurrent nerve palsy were made clear in 3/4 of the cases. The operative procedure was the most frequent cause, and disease in the chest followed. Malignant tumors have increased, compared to past reports. 3) The conservative therapy was performed in a majority of cases. The laryngeal leukoplakia in some cases was biopsized with LMS repeatedly and was finally diagnosed as a cancer. Cases with such precancerous condi-tions must be observed for a longer period.
