In addition to the benefits of receiving a diagnosis at earlier stages, with smaller tumors and node negativity, patients with breast cancer undergoing screening mammography aged 40-49 years are less likely to require chemotherapy and its associated morbidities. The majority of high-risk lesions were diagnosed in the screened group, which may lead to the benefit of chemoprevention, lowering their risk of subsequent breast cancer, or screening with MRI, which may diagnose future mammographically occult malignancies.
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