<unk>  (Greek: displacement, μετά=next + στάσις=placement, plural:<unk> , sometimes abbreviated<unk> s, is 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 capacity to<unk> e.
Cancer cells can "break away", "leak", or "spill" from a primary tumor, enter lymphatic and blood vessels, circulate through the bloodstream, and settle down to grow within normal tissues elsewhere in the body.<unk>  is one of three hallmarks of malignancy (contrast benign tumors). Most tumors and other neoplasms can<unk> e, although in varying degrees, barring a few exceptions (e.g., Glioma and Basal cell carcinoma never<unk> e).
When tumor cells<unk> e, the new tumor is called a secondary or<unk> astatic tumor, and its cells are like those in the original tumor. This means, for example, that, if breast cancer spreads <unk> es) to the lung, the secondary tumor is made up of abnormal breast cells, not of abnormal lung cells. The tumor in the lung is then called<unk> astatic breast cancer, not lung cancer.
Metastasis
Vascular tumor
Exostosis
Mixed gliomas
Glioma
High grade astrocytoma
Cavernous transformation
Noma