[Irradiation of basal cell epitheliomas of the face: a handicap for the surgeon in some cases of recurrence (author's transl)].

A case is reported which illustrates the progressive relapsing nature and local invasive character of certain irradiated basal cell epitheliomas. One such case, that involved the tragus initially, and had been irradiated on five occasions, successively invaded the lobe of the ear, the auditory canal, the helix, the mastoid, and the zygomatotemporal region in spite of six operations and the use of cryotherapy.