Summary

On 78 superficial lesions of the skin of head and neck as well as the mucosa of nose and mouth 108 cryosurgical procedures were done. The sequence of frequency of these lesions was: in the skin warts, small benign tumors, basal cell carcinoma; in the mucosa stomatitis aphthosa, nosebleed, benign tumors of the palate and the tongue, lateral lymphatic hyperplasia of the pharynx, leukoplakia and precancerous lesions. — Best results were obtained in pedicled papillomas of the palate, stomatitis aphthosa, nosebleed (only one session necessary). Most resistant were keratinized lesions of the skin. In single cases also the shortened ligament of the tongue and the glossitis rhomboidea mediana have been treated cryosurgically. Scarring was also in the treatment of abundant leukoplakia minimal. Before cryosurgery of precancerous lesions a biopsy has to be taken. These patients must be followed up with special care.