A new study suggests that many women with early-stage breast cancer may not need radiation after a mastectomy, thanks to advances in modern cancer treatment.
The international clinical trial followed more than 1,600 women who had early-stage breast cancer. They were considered at intermediate risk for recurrence, meaning they had Stage 2 cancer with up to three affected lymph nodes, or tumors with aggressive features and no lymph node involvement.
All of the women had surgery to remove the breast and lymph nodes. They also received advanced anti-cancer drugs.
Half were randomly assigned to receive radiation after surgery, and half were not.
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