iStock/ThinkstockBy DR. JENNIFER ASHTON, ABC News Senior Medical Contributor

Continued controversy over breast cancer screening frequency in women over 50.

If you have dense breast it may be harder to identity possible presence of cancer. So those with dense breast, who are also at higher risk for breast cancer, should be screened yearly with mammography.

The question of whether or not to also get a sonogram as part of breast cancer screening is still up in the air. Many doctors, myself included, feel that sonograms are important for women with dense breast at any age.

Since sonograms can detect tumors that mammograms often miss, my prescription is that you talk to your doctor about the right type of screening for you. Should it be a mammogram? A mammogram and sonogram? And how often should you get screened?

By law in many states, you need to be informed if you have dense breasts on your mammogram report. So ask, “Am I dense?”

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