Hamilton researchers find radiation not necessary for patients with low-risk breast cancer

The research shows women 55 or older with a specific subtype of Stage 1 breast cancer can be effectively treated with just surgery and endocrine therapy. The subtype of breast cancer that researchers focused on represents up to 60% of all breast cancers diagnosed annually and is associated with a lower risk of recurrence. With this new approach, a significant proportion of women can be spared radiation after breast conserving surgery. Eliminating the need for this group to receive radiation will allow women to avoid the side effects of therapy and can add capacity back into the public healthcare system, permitting increased access for those who require radiation therapy more urgently.