Having to do with metastasis, which is the spread of cancer from the primary site (place where it started) to other places in the body.
Source: NCI Dictionary of Cancer Terms
Caption: Metastasis. In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form new tumors (metastatic tumors) in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor.Date last modified: 2014-11-19