Metastatic cells

Patent Pending Metastasis, or metastatic disease, is the spread of a cancer or disease from one organ or part to another not directly connected with it. The new occurrences of disease thus generated are referred to as metastases /mə ˈtæs tə siːz/ (sometimes abbreviated "mets").[1][2] It was previously thought that only malignant tumor cells and infections have the capacity to metastasize (also spelled metastasise); however, this is being reconsidered due to new research.