NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,128 terms related to cancer and medicine.
We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.
- heterogeneously dense breast tissue
- listen (HEH-teh-roh-JEE-nee-us-lee dents brest TIH-shoo)
A term used to describe breast tissue that is made up of mostly dense fibrous tissue and glandular tissue and also has some fatty tissue. On a mammogram, the dense areas of the breast make it harder to find tumors or other changes. Heterogeneously dense breast tissue is one of four categories used to describe a level of breast density seen on a mammogram. About 40% of women have this type of breast tissue.