Overview

Brain metastases occur when cancer cells spread from their original site to the brain. Any cancer can spread to the brain, but the types most likely to cause brain metastases are lung, breast, colon, kidney and melanoma.

Brain metastases may form one tumor or many tumors in the brain. As the metastatic brain tumors grow, they create pressure on and change the function of surrounding brain tissue. This causes signs and symptoms, such as headache, personality changes, memory loss and seizures.

Treatment for people whose cancer has spread to the brain may include surgery, radiation therapy, chemotherapy, immunotherapy or a combination of treatments. Other treatments might be recommended in certain situations. Treatment is often focused on reducing pain and symptoms resulting from the cancer.