[Autoradiographic investigations in actinic (senile) comedones (author's transl]

Skin specimens of patients suffering from actinic comedones, young patients with acne vulgaris, and normal controls of the same age groups respectively were subjected to in vitro autoradiography. From the results it can be concluded, that a rise in the proliferational activity in the follicular infundibulum due to actinic stimuli is responsible for the development and growth of actinic comedones.