[Radiotherapy problems by skin tumors in the facial folds]

The clinical observations of the higher incidence of recurrence after irradiation of skin cancer in the more furrowed and more articulated regions of the face are explained in part by physical-dosimetric measurements. We believe that the higher ratio of recurrences in these areas is attributable to several factors, such as the unfavorable patho-anatomical structure and the inherent difficulties in radiation therapy and to the inadequate determination of the tumor's depth extension.