Brain cancer is a severe disease of the brain in which malignant cells overgrow in the brain tissue. Cancer cells grow to form a mass, generally known as brain tumors. These tumors (cancerous tissues) interfere with brain functions such as memory, muscle control, sensation, and other bodily functions. Some cancer patients develop primary brain tumors that originate from the brain and do not spread to other parts of the body. In contrast, others suffer from metastatic or secondary brain tumors that arise from other body sites and reach the brain. The secondary tumors can be multiple or single and are diagnosed through angiography, biopsy, and nuclear medicine bone scan. Brain Cancer experts recommend treatment options to cancer patients based on each patient’s diagnosis and situation. Unfortunately, cancerous or malignant brain tumors grow very quickly and can be life-threatening.