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Mammograms Endorsed as Top Tool in Detecting Breast Cancer

It's no longer necessary for women to perform self-exams, American Cancer Society says. The tests did not contribute to survival rates.

May 16, 2003|From Associated Press

ATLANTA — Mammograms remain the most important tool in detecting breast cancer, and women need not worry about performing breast self-exams, the American Cancer Society said Thursday.

The Atlanta-based society updated its breast cancer guidelines for the first time since 1997. More research has confirmed the society's 1997 recommendation for women to receive mammograms annually starting at age 40.

"A lot of women were reading a year or so ago that some people were not sure whether mammography had any benefit," said Debbie Saslow, the society's director of breast and gynecologic cancers.

"The level of confidence in the benefit is higher than ever. Mammograms find 80% to 85% of cancers -- we know they increase survival dramatically."

The largest change in the guidelines involves the breast self-exam, which previously was recommended once a month. But research has found the exams did not contribute to breast cancer survival rates.

Where mammograms typically find cancers that have grown for two years, self-exams typically detect cancer that has been growing for six years, Saslow said.

"We don't have evidence that doing it every month is having any survival benefit," she said.

The recommendations say that women in their 20s should be told about the benefits and limitations of the self-exam and that it is all right for women to choose to perform it occasionally or not to perform it at all.

"Unfortunately by the time you can feel something, it's big enough where it's either had a chance to spread and grow or it's pretty benign and finding it wouldn't hurt if you didn't find it," Saslow said.

The society also said women ages 20 to 39 should receive a clinical breast exam every three years and women age 40 or older should get one annually.

Older women who are healthy may find benefit in a mammogram, but those with health problems need to consult their doctor to determine whether the mammogram will be helpful, as "the survival benefit of a current mammogram may not be seen for several years," the society said.

Women at increased risk -- such as those with a family history of breast cancer -- may wish to have a mammogram at age 30 as well as breast ultrasound or breast MRI. But women who receive the breast MRI should receive it at a facility able to perform an MRI-guided biopsy in case something is detected that cannot be seen in a mammogram or by touch, Saslow said.

The society also warned that new, nonmammography screening technologies must equal or exceed the detection ability of mammography before they should be used for screening.

"There's over a dozen out there; some have not been approved," Saslow said. "None of them are far enough along or have enough effectiveness for screening instead of mammography."

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