Global News

TORONTO – A study lead by Toronto researchers has found little difference in death rates among women with the most common type of breast cancer, ductal carcinoma in situ (DCIS), who underwent a mastectomy versus less invasive treatments: either a lumpectomy, or lumpectomy with radiation.

The study of 100-thousand American women was led by Dr. Steven Narod, with Women’s College Research Institute.

“We found all three treatments were about the same in terms of cure rates.  If the goal was simply to extend life expectancy and prevent cancer death, then I would agree a mastectomy is an overly aggressive treatment,” said Dr. Narod.

While the study found mastectomies didn’t change death rates, they did reduce the likely hood of a reoccurrence.

READ MORE: ‘Stage 0’ breast cancer increases death risk slightly

“We know the development of invasive cancer is very traumatic and also requires treatment, further surgery, radiation, chemotherapy or…

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