Can You Trust Your Mammogram?
The San Francisco Chronicle reported on a large scale review of mammograms in the United States, where large variance was found in how accurate a mammogram was interpreted. The study found up to 30% of mammograms were interpreted incorrectly and the cancer was not identified.

Also reported in the story was another review of how well radiologists analyse diagnostic x-rays, that is, when they already know of the suspicious area. On average, it was found, 21% of cancers were missed at the diagnostic x-ray stage. In one centre, 73% of cancers were missed!

The story from the Chronicle here: http://www.sfgate.com/cgi-bin/article.cgi?f=/g/a/2009/07/29/hearstmaghealth381278.DTL

At the moment, mammography is still the most recognised way to screen for breast cancer, and many countries offer a government screening program. However, there is an ethical obligation to look at other options for the many women who choose not to have a mammogram, or for whom a mammogram may not be suitable for.