[Examination of the breast with ultrasound: limits and possibilities (authro's transl)].

Following a brief introduction to ultrasound the advantages and disadvantages of this examination are presented with regard to differentiation of benign and malignant tumors of the breast. This method is unsuitable for screening because of its present technical failures: its only importance lies in the differential diagnosis of benign lesions. These statements are based upon the case material of the Department of Gynecology and Radiology of the Postgraduate Medical School of Budapest.