Source:http://linkedlifedata.com/resource/umls/id/C1458156
NCI: Cancer that has recurred (come back), usually after a period of time during which the cancer could not be detected. The cancer may come back to the same place as the original (primary) tumor or to another place in the body.,NCI: The reemergence of a malignant neoplasm after a period of remission. -- 2003