Task Force Finds Ovarian Cancer Screening Not Always Effective
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A paper-and-pencil quiz may be all you need to help with early ovarian cancer diagnosis. Tetra Images/Corbis Facebook Twitter LinkedIn
Testing women to catch ovarian cancer in its early stages would seem to make perfect sense. Rare and hard to detect, the disease has often spread to other organs by the time it's diagnosed —
one reason that 15,500 women will die of ovarian cancer this year.But a new advisory from the U.S. Preventive Services Task Force recommends against routine screening of most symptom-free
women, saying that while the case for catching the disease early is compelling, screenings can lead to unnecessary operations with high complication rates.
The reason, says task force chair Virginia A. Moyer, M.D., is that the two main methods used to diagnose ovarian cancer — transvaginal ultrasound scans and blood tests for a biomarker called
cancer antigen-125 — yield a large number of false-positive results.
Only abdominal surgery can rule out the possibility of cancer, a major procedure that carries a small but real risk of complications, says Moyer, a professor of pediatrics at Baylor College
of Medicine in Houston. "The downstream effects of all the false positives greatly outweigh the benefits," she says.
The recommendation, which reinforces the task force's guidelines first issued in 2004, does not apply to women who have specific symptoms, or to those with a family history or known genetic
mutations predisposing them to the ovarian cancer, Moyer emphasizes.
The task force, an independent panel of medical experts appointed and funded by the federal Agency for Healthcare Research and Quality, regularly reviews the scientific basis for preventive
measures such as cancer screening.
Its recommendations are sometimes controversial. In recent years it has cautioned against routine mammography for women under 50 and against prostate-specific antigen (PSA) tests for
prostate cancer.
But the ovarian cancer guideline "simply is not controversial," Moyer says. "There's no one who thinks that this works."