Question: what percent of microcalcifications in the breast are cancerous?
Answer: “Only 10-20 percent of breast cancers produce microcalcifications, and of the microcalcifications which are biopsied, only 10-20 percent are positive for cancer. “Mammograms are good at finding microcalcifications, Dr. Chou goes on to explain, but that is only a portion of the larger diagnostic picture.