There is no current policy regarding the reporting of dense breast tissue in Canada. Further studies are required to determine if additional screening tests are appropriate for women with increased breast density, including an understanding of the advantages and disadvantages of additional testing.
At present, in BC and in Canada, a breast density assessment from a mammogram is subjective; therefore the accuracy of determining breast density from a mammogram at this time would be questionable and could lead to a lot of unnecessary concern and follow-up.
No screening test is perfect, and mammography is no exception. Factors like age or breast density can influence the look of breast tissue on a mammogram, making cancers more or less difficult to recognize. But many cancers are found on mammograms even if dense breast tissue is present.