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Definition. Breast calcifications are calcium deposits within breast tissue. They appear as white spots or flecks on a mammogram and are usually so small that you can't feel them. Breast calcifications are common on mammograms and they're especially prevalent after menopause.n a mammogram, breast calcifications can appear as macrocalcifications or microcalcifications. 1  Macrocalcifications. 2  These show up as large white dots or dashes. 3  They're almost always noncancerous and require no further testing or follow-up.
A urine calcium test is done to measure how much calcium is passed out of the body through urine. The test is also known as the urinary Ca+2 test. Calcium is the most common mineral in the body. All cells throughout the body use calcium for various functions. Calcium is used by the body to build and repair bones and teeth. It also helps nerves, the heart, and muscles function properly, and blood to clot.