What is the definition or description of: microcalcifications?

See below: Microcalcifications are tiny specks of mineral deposits (calcium), that can be scattered throughout the mammary gland, or occur in clusters. When found on a mammogram, a radiologist will then decide whether the specks are of concern - usually, this is not the case. Commonly, they simply indicate the presence of tiny benign cysts, but can signify the presence of early breast cancer.

Microcalcifications: are tiny calcium deposits that can occur in various parts of the body, such as the breast and thyroid gland. There are a variety of causes, most benign, but certain cancers can also produce them. Generally, the shape and distribution determine the level of suspicion. Typically benign looking microcalcs can usually be ignored, and more suspicious microcalcs likely need to be biopsied.