[Perioperative ultrasound examination of the breast in breast cancer].

127 cases of breast carcinoma were examined in a prospective study. By means of preoperative ultrasonography the staging following the pTNM-system validates the tumor size in 85.5% and the lymph node involvement in 77.2%. Multicentric-multifocal carcinomas were diagnosed by ultrasonography in 20 of 29 cases, merely 9 of 29 by mammography. Ultrasonography of specimen is recommended in cases of negative clinical findings and positive ultrasound examination to verify tumour excision. In addition to clinical exploration and mammography the ultrasonography of the breast obtains a diagnostic significance for planning a conservative management of breast cancer.