what is bilateral breast cancer

Release time ：Dec-24,2024

Bilateral breast cancer refers to the occurrence of breast cancer in both breasts either concurrently or sequentially. This condition, while relatively infrequent, demands particular attention in terms of diagnosis and management.

Typically, bilateral breast cancer can manifest synchronously, where tumors are present in both breasts at the same time, or metachronously, where a tumor develops in one breast followed by a subsequent tumor in the other breast at a later time. Synchronous bilateral breast cancer accounts for approximately 5% to 10% of all breast cancer cases, whereas metachronous bilateral breast cancer is even less common, with an incidence of about 1% to 2%. The causes of bilateral breast cancer are not entirely clear, but genetic factors are deemed significant risk contributors. For instance, individuals with mutations in the BRCA1 and BRCA2 genes are at a notably higher risk for developing bilateral breast cancer.

In treating patients with bilateral breast cancer, therapeutic plans must consider the characteristics of the tumors in both breasts as well as the patient's unique circumstances. This may involve a combination of various treatment modalities, including surgery (e.g., mastectomy), radiation therapy, and chemotherapy. Given the complexity of bilateral breast cancer, patients should adhere to their physicians' guidance throughout treatment and avoid making unguided adjustments to the treatment plan. Additionally, regular follow-ups and examinations are crucial to promptly identify and address any emerging issues.