What are the types of brain tumors?created at May 04, 2009 141 There are primary and secondary brain tumors. Tumors that begin in brain tissue are known as primary tumors. Secondary tumors are when cancer spreads from another site to the brain, which is called metastasis. Brain tumors are classified by the type of tis... |
What is brain cancer?created at May 03, 2009 72 Benign brain tumors do not contain cancer cells, but they can press on sensitive areas in the brain and cause symptoms. They are usually a collection of extra cells that cause a mass of tissue called a "tumor." They typically have clear borders and do not ... |