[Premalignant fibroepithelial tumors of Pinkus and previous irradiation: report of a survey of 20 patients].

The search for previous irradiation was done: in nine of the twenty cases radiotherapy or repeated roentgenograms are found, usually twenty years before the start of fibroepithelial tumour. In one case, there was ingestion of arsenic for psoriasis. But in ten cases, no antecedent of irradiation are found (but the interrogatory was sometimes difficult). So it appears that previous irradiation, if it helps starting of fibroepithelial tumour, is not necessary, and the further evolution is the same, with or without irradiation.