[Extension of basal cell epitheliomas. Value of extemporaneous histological examination and bone scintigraphy (author's transl)].

Though basal cell epitheliomas present the advantage of lack of spread into lymph nodes and of having only local activity they can extend considerably both on the surface and in the deep tissues. Because of the difficulty in obtaining complete excision of recurrences the authors are prudent in their attitude and take all possible precautions during treatment of these lesions, including extemporaneous histological examinations and bone scintigraphy which appear to be indispensable.