How accurate is a mammogram?
A mammogram may not be a perfect assessment of your breast health. When an abnormality does appear on a mammogram and biopsy is recommended, only 1 out 3 to 4 is malignant (cancerous). About 10 to 15 % of breast cancers cannot be seen on a mammogram, but mammography is still the best tool available for detecting early cancers too small to be felt.
Evidence has shown that mammography is an effective tool for detecting breast cancer. When an abnormality does appear on a mammogram and biopsy is recommended, only 1 out of every 3 or 4 prove to be malignant (cancerous). Some breast cancers cannot be detected on a mammogram, but mammography is still the best tool available for detecting cancers too small to be felt. Because some breast cancers do not show up on mammograms, it is important to incorporate regular breast self exam and an annual clinical breast exam by your doctor as part of your breast health routine.
