Metastasis is the spread of cancer. Cancer that begins in other parts of the body may spread to the brain and cause metastatic tumors. These tumors are not the same as primary brain tumors. Cancer that spreads to the brain is the same disease and has the same name as the original (primary) cancer. For example, if lung cancer spreads to the brain, the disease is called metastatic lung cancer because the cells in the metastatic tumor resemble abnormal lung cells, not abnormal brain cells.
Treatment for brain metastases depends on where the cancer started and the extent of the spread, as well as other factors, including the patient’s age, general health, and response to previous treatment.
For more detailed information, please see Metastatic Brain Tumors under the Treatable Conditions tab.