As many as 1 in 4 breast cancers occur in women younger than 50, a new study has found.
Among seven outpatient clinics in the New York region, 20% to 24% of breast cancers were found in women 18 to 49, researchers said Monday at the Radiological Society of North America's annual meeting in Chicago.
"This research shows that a significant proportion of cancers are diagnosed in women under 40, a group for whom there are no screening guidelines at this time," researcher Dr. Stamatia Destounis, a radiologist with Elizabeth Wende Breast Care in Rochester, N.Y., said in a news release.
The U.S. Preventive Services Task Force recommends mammography every other year starting at 40 and continuing through age 74, researchers noted.
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