[Morphology and histogenesis of dysplasias of the cervix uteri]

Basic literature data on the morphology of the uterine cervix dysplasias and their relation to carcinoma in situ are summarized. The features of squamous cell and cambial (metaplastic) dysplasias, their ultrastructure and genesis are presented on the basis of authors' material. The notion "cervical intraepithelial neoplasia" is discussed. The opinion is expressed as to the incorrectness of the classification of dysplasia and carcinoma in situ in one category as the dysplasia is morphological precancer while carcinoma in situ is cancer.