Incidence and Detection of Contralateral Breast Cancer

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Abstract
In this study we estimated the efficacy of contralateral breast biopsy as a subsidiary method of early detection of bilateral breast cancer. We performed blind biopsies in the upper outer quadrant of the opposite breast in 195 patients undergoing surgical treatment for primary breast cancer. The histologic examination of the biopsy specimens showed 12 malignant lesions, which accounts for an incidence of 6.1%. In detail, we had two infiltrating ductal cancers, two infiltrating lobular cancers, three ductal in situ cancers, and five lobular in situ cancers. The overall incidence of invasive disease was 2.05%. We concluded that contralateral breast biopsy should be reconsidered as a method for enhancing early detection of contralateral breast cancer in high‐risk groups, especially when it meets the emotional needs of patients. Permission given, it is included in the main surgical treatment of patients, avoiding the cost and complications of anesthesia, and it is cosmetically acceptable, without being an emotional burden for the woman.