[Ventricular cord hyperplasias of the larynx-pathogenesis and treatment (author's transl)].

Primary hyperplasia of the ventricular cords can produce voice disturbance or can be a secondary change caused by a primary voice disorder. Primary hyperplasia, besides inflammation or tumour, arises in aging people by a metaplastic process of the glandular epithelium of the ventricular cords. These lesions are called "grandular-cystic ventricular cord hyperplasias". Secondary hyperplasias are mainly of a fibrous nature. These "fibrous-vicarious hyperplasias" arise in hyperkinetic functional voice disorders, in pareses or in some cases of extensive chronic hyperplastic or oedematous laryngitis if the vocal cords can no more be used for normal phonation. Endolaryngeal microsurgical excision from the ventricular cords followed by voice exercises enables us to treat the "ventricular cord voice" successfully within a short time.