Dictionary of Cancer Terms
View in Spanish: Cáncer de mama multifocal
Multifocal breast cancer (mul-tee-FOH-kul brest KAN-ser)
Breast cancer in which there is more than one tumor, all of which have arisen from one original tumor. The tumors are likely to be in the same quadrant (section) of the breast.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.