[The ultrastructural characteristics of the early diagnosis of mycosis fungoides].

As a result of studies made (biopsy specimens of damaged skin from seven patients presenting with the erythrodermic stage of mycosis fungoides) a conclusion was reached that at the given stage the following two processes take place: (1) a rise in the proliferative activity of keratinocytes and (2) disturbances their differentiation. These ultrastructural manifestations can serve as criteria for a well-timed diagnosis of mycosis fungoides to be made.