Comparison of Conventional With Sonography Assisted Breast Surgery After Neoadjuvant Chemotherapy

Sonographically Assisted Versus Conventionally Breast Surgery in Breast Cancer Patients With an Indication for Breast Conserving Surgery After Neoadjuvant Chemotherapy

Aim of the study is to investigate whether intra-surgical visualisation of malignoma reduces the resection rate in the case of R1 resection compared to the procedure without sonographic visualisation

Inclusion Criteria:

• 18 to 80 years
• Female
• Presurgical validated breast cancer
• Unifocal to multifocal findings
• Palpable and/o non-palpable findings
• Neoadjuvant chemotherapy
• Indication for breast conserving therapy
• General operation ability and anesthesia ability
• Consent to conventional breast conserving breast surgery with wire marking
• Ability and will to follow the study conditions
• Written declaration of consent after clarification

Exclusion Criteria:

• Sonographically not clearly delineate resection areal
• Exclusion criteria for breast conserving therapy
• Simultaneous participation in other interventional trials that interfere with this study at the investigator's discretion