[Ultrastructure of the cervical epithelium in dysplasia].

A comparative and electron microscopic study was made of cervical tissue in 19 female patients with pseudoerosion, chronic endocervicitis and dysplasia with varying severity. The areas of dysplasia revealed cellular elements characteristic of squamous metaplasia, which suggested mild dysplasia arisen in mature and immature squamous metaplasia, severe dysplasia resulted in atypical immature metaplasia. The characteristics of a cellular population in dysplasia may be used to define the severity of the pathological process in question.