Study: Breast Cancer Actually 10 Different Categories

'Landmark' report could spare women unnecessary treatments

by Lesley Kennedy • MORE.com Reporter

Breast cancer could be looked at in a whole new way after a new study that finds breast cancer tumors belong in 10 different categories, the Los Angeles Times reports.

Already called a “landmark” report, the research, published in the journal Nature, looked at 2,000 frozen breast cancer samples and shows survival rates can be more accurately predicted and treatment better administered by determining the exact category of breast cancer a woman has, according to the newspaper.

“If you belong to one group you'll need one therapy, and if you're in another you'll need another,” lead researcher and University of Cambridge breast cancer geneticist Dr. Carlos Caldas tells the Times. “A lot of women are being overtreated. Can we spare them that?”

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