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NCI Dictionary of Cancer Terms

benign proliferative breast disease  listen  (beh-NINE proh-LIH-feh-ruh-tiv brest dih-ZEEZ)

  A group of noncancerous conditions marked by an increase in the growth of certain cells in the breast. Having one of these conditions may increase the risk of breast cancer. Examples include ductal hyperplasia, lobular hyperplasia, and papillomas.