THE PREDILECTION of lichen chronicus simplex, lichen planus verrucosus, and localized primary amyloidosis for certain areas of the legs is frequently dependent on the concomitant state of an impaired venous circulation. These dermatoses may manifest themselves as grouped nodular elevations or as large well-defined thickened plaques. Extensive hyperkeratosis may change their familiar features, and it may become difficult to differentiate them clinically. Examination of the patient in the standing position may reveal the topographic relation of the cutaneous manifestations to the varicosities. The dilated veins may be detected better by palpation than by inspection or with the help of a tourniquet.1
Lichen chronicus simplex associated with varicose veins can be beneficially influenced by treatment of the incompetent veins. Involution or complete remission of the annoying skin disorder may be achieved exclusively by this therapy in certain cases. Heyerdale and Cannon2 were the first to emphasize the