Treatment Guidelines from The Medical Letter
Cancer Screening
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Use of screening tests to identify cancers before they cause symptoms can lead to earlier therapy and may improve outcomes. Screening tests for some common cancers are reviewed below.


Annual or biennial screening mammography can decrease breast cancer mortality in women 50-74 years old.1

WOMEN UNDER 50 — The mortality benefit of mammography screening for women in their 40s is less well established; no randomized controlled trials of screening have demonstrated statistically significant risk reductions, but most meta-analyses have found a decrease in breast cancer mortality with screening of women in this age group.2,3 Younger women have denser breasts, a higher incidence of false-positive results, a lower overall incidence of disease, and a higher incidence of fast-growing ... more      

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Title: Cancer Screening
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