How does a brain tumor affect the brain?
With a limited amount of space in the skull, the growth of a tumor can damage brain tissue and change the way the brain works. Brain tumors can also destroy healthy tissue as it grows. Any cognitive and/or behavioral changes that occur depend on the size, type and location of the tumor. These changes may be temporary and go away over time, or improve with treatment. Cognitive changes can also be longstanding and in some cases permanent. Whether cognitive changes will improve depends largely on their cause.
