Breast density awareness
Dense breast tissue can make the mammogram difficult to read. In mammography, this density appears white. Cancerous tumors also appear as white densities on a mammogram so finding a cancer in a dense breast is similar to finding one cloud in a cloudy sky.
Breast density is directly related to the level of estrogen in the body. During menopause, estrogen levels drop causing the tissues comprising the breast tissue to shrink and leaving behind more fatty tissue. Hormone replacement therapy (HRT) replaces lost estrogen. For women on HRT, breast tissue can remain dense and therefore difficult to evaluate. This is a concern due to the fact that HRT occurs at an age when women’s risk of breast cancer is significantly higher.
The MBI procedure is unaffected by dense breast tissue, and it is able to detect very small cancers or ductal carcinoma in situ. MBI is therefore helpful in diagnosis of some cancers that can be obscured by dense breast tissue on the mammogram.
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