[Differential diagnosis of star-shaped shadows on x-ray films of the female breast (author's transl)].

The mammographic demonstration of star-shaped shadows in the breast were reported in two cases. In both cases the lesions basically had to be classified as suspected malignancy, but the cytological examination showed the lesions to be benign scar tissue. Since mammography fails to demonstrate the boundry of a lesion which is seldom benign, such false positive diagnoses cannot be truly classified as "false diagnoses".