What is dence breast tissue?

Breast tissuse/mamm: It is a mammographic finding indicating more glandular tissue than fat. It is commonly found in younger women who have more prolifrative tissue, which slightly increases the risk of breast cancer. Importantly it makes it difficult to see small breast cancers in the dense tissue. Such women require additional rests like ultrasound if there is any suspicion or doubt of a breast mass.

Breasts are: normally composed of fibroglandular tissue and fat. The fibroglandular tissue is white or "dense" on the mammo, the fat is lucent. The breasts are considered dense if there is >50% dense tissue relative to fat. Although dense breasts are normal, they can decrease the sensitivity of mammo for detecting cancer, and dense breasts also slightly increase the risk of cancer.