[A case of epidermodysplasia verruciformis with neoplastic degeneration and demonstration of viral particles in warts (author's transl)].

A case of epidermodysplasia verruciformis, already described by Borelli in 1946, was presented. The electron microscopy showed viral intranuclear particles in the verrucous lesions. A Bowen-like tumor was found on the forehead. The connections are described between virus and tumor.