What is Brain Tumor and Brain Cancer
What exactly is Brain Tumor and Brain Cancer? Our medical encyclopedia can get you started in your journey to learn more about this condition. Continue your research by clicking a new category in the left navigation.
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Brain Tumor and Brain Cancer Definition
A brain tumor is a disease in which cells grow uncontrollably in the brain. Cancer occurs when cells in the body divide without control or order. If cells divide uncontrollably they form a mass of tissue. The mass is called a growth or tumor. The term cancer usually refers to malignant tumors. These can invade nearby tissue and can spread to other parts of the body. A benign tumor does not spread, but it can press structures near it causing symptoms.
There are two main types of brain tumors:
- Primary brain cancer begins in the brain. It can be either benign or malignant. A small benign tumor in a bad location can cause significant problems.
- Secondary or metastatic brain cancer has spread to the brain from another site in the body. All metastatic tumors are malignant.
© 2009 Nucleus Medical Media, Inc.
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