A brain tumor is a cancer in the brain. It can be a result of abnormal cell growth in the brain or a consequence of spreading of some other cancer. The cancer which started in the brain is called primary brain tumor. This type of cancer is not as common as secondary brain tumor which starts on some other part of the body and spreads on the brain. The most common types of cancer which can spread in the brain are lung, kidney, breast and colon cancer and melanoma. The older you get the risk of the brain tumor increases. If you have been exposed to chemicals or radiation source for a longer period of time, you may be at grater danger of the brain tumor. If someone in your family has had a brain tumor you may be also at risk. The brain tumor is more frequent in white people.
The symptoms of the brain tumor depend on the type, size and the position in the brain. The most common symptoms include severe headaches, sickness, vomiting, vision and hearing impairment, numbness in the legs or arms, weakness, fatigue, problems with balance, coordination and speech, behavior and mood changes and seizures. Having these symptoms does not always mean that you have the brain tumor. However if they are bothersome, severe, or cause difficulties in your everyday life you should see your doctor.
In order to make a diagnosis, you doctor will perform some exams and order a number of tests. The exams include hearing, vision and balance checking, and physical exam. The tests include biopsy, MRI, CT scan, PET, X-rays imaging and genetic test.