Dense breast tissue on mammogram

Breast density on mammogram is reported as one of four categories.

  • breast tissue primarily fatty
  • scattered fibroglandular tissue
  • heterogeneously dense tissue
  • extremely dense tissue

After a routine screening mammogram, about 50% of women receive results indicating they have either heterogeneously dense or extremely dense breast tissue. These women are advised to discuss with their health care provider the option of having a screening ultrasound.

We encourage you to read more about the topic of breast density by following this link: