April 3, 2000 (Chantilly, Va.) -- Medical experts say there are several
reasons why a mammogram may fail to detect a cancerous tumor:
The technology. Mammograms involve squeezing a woman's breast between two
plates of glass -- a technique that is awkward at best. Old or badly maintained
equipment and poorly trained technicians can increase the odds of an inaccurate
The quality of a woman's breast. Mammograms aren't good at detecting
cancers in breast tissue that is dense or fibrous, as is common among female
athletes and premenopausal women.
The pace of medicine. With radiologists under pressure to read more films
more quickly, the risk of making mistakes has grown.
Studies on mammogram accuracy show that screenings miss anywhere from 5% to
17% of abnormalities. Yet many patients continue to believe that a
"clear" mammogram is the same as a clean bill of health.
By Ashley Ross and Sophie Banay Moura
Cancer: The word alone can paralyze us. Instead of protecting ourselves, we resort to magical thinking—it won't happen to me. That's a mistake. Rates of the top five cancers in women 20 to 39—in order, they are breast, thyroid, melanoma, cervical, and colorectal—are rising. The good news: There's a lot you can do to prevent them. We talked to the country's top doctors and mined the latest research for Marie Claire's first-ever cancer crash course. Here, how...
"Even though there is no perfect test, and no perfect doctor, and no
perfect reading, patients expect perfect results,'' says Phan Huynh, M.D., a
breast imaging specialist at the University of Texas Health Science Center in
Michael D. Towle writes regularly for WebMD on health and