Metastasis is the movement or spreading of cancer cells from one organ or tissue to another. Cancer cells usually spread through the blood or the lymph system.
If a cancer spreads, it is said to have "metastasized."
Metastatic cancer; Cancer metastases
Whether or not cancer cells spread to other parts of the body depends on many things, including:
The type of cancer
The stage of the cancer
Original location of the cancer
Treatment depends on the type of cancer and where it has spread.
Perry MC. Approach to the patient with cancer. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011: chap 182.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.