Metastasis (Greek: displacement, μετά=next + στάσις=placement, plural: metastases), or Metastatic disease, sometimes abbreviated mets,'s the spread of a disease from one organ or part to another non-adjacent organ or part. Only malignant tumor cells and infections have the established capacity to metastasize; however, this's recently reconsidered by new research. Cancer cells can break away, leak, or spill from a primary tumor, enter lymphatic a… (More on Metastasize)