Source:http://linkedlifedata.com/resource/umls/id/C2986662
NCI: 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.,NCI: A breast carcinoma characterized by the presence of multiple cancerous tumors that originate from the same clone and are usually located in the same quadrant of the breast.