This week, the United States Preventive Task Force (USPTF) issued new guidelines for breast cancer screening. The USPTF analyzed various mammography screening schedules and concluded that:1) Women under the age of 50 should not be screened with routine mammograms because proven benefits are lacking and the risks of harm (such as unnecessary biopsies from false positive results, especially in women with dense breasts) are greater.
2) Screening women of average risk between the ages of 50 and 74 with mammography every two years will achieve most of the benefits of yearly screening, but with less harm.
3) The task force also recommends against teaching breast self-exam.
So why the new recommendations? What new information do we have on the behavior of breast cancers and mammograms?
Many scientists believe that there are two types of cancers.
First there are those that appear suddenly, grow rapidly, act aggressively, and often are diagnosed when it is already “too late” for curative treatment. Even a yearly mammogram might not diagnose this aggressive breast cancer in the early stages.
But for many women (and men when it comes to the prostate) their cancers are of a second type — they are very slow growing, often not even showing up on mammograms for many years. These slow cancers are thought to be much less aggressive. Some experts are even suggesting that these cancers may either disappear on their own or would not cause injury or death to the person with them, even without treatment.
Source: abcnews.com
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