THE DEVELOPMENT of tumors on the dorsa of the hands in a patient following a severe sunburn was first reported by Poth1in 1939. Spontaneous involution occurred in approximately eight months. Two previous similar experiences had been noted by this same patient. In his paper Poth adequately reviewed the literature of actinic dermatoses, and Stillians,2in 1950, presented additional data on the effects of irradiation of the skin. The following case is presented in some detail because Poth3feels that it is the first case since his original report that parallels his case both clinically and histologically. REPORT OF CASE Mr. D. L. C., aged 75, was referred to the dermatology clinic of the Veterans Administration Hospital, Louisville, in February, 1950, because of multiple warty growths on the dorsa of his hands and wrists. The patient had been a blacksmith from 1923 to 1943,