[Classification of laryngeal papillomas and papillomatosis (author's transl)].
The clinical behavior of laryngeal papillomas is discussed by literature and by own 130 cases. Laryngeal papillomatosis is an epithelial proliferative lesion. Without prejudice to viral aetiology it can be interpreted in some cases as a dysplastic epithelial Tumor with the risk of cellular change to carcinoma. A histologic and cytologic classification of laryngeal dysplastic papilloma is described. The basic knowledge has been gained by the experiences in the diagnosis of oral-carcinom, portio-carcinoma and larynx-carcinoma. This classification is used for 48 selected cases of multiple and recurrence laryngeal papillomatosis in which sometimes also elder histological preparations were still available. The results and clinical value are discussed.