A brain tumor is an injury uncontrolled growth. You can initially originate in the brain or central nervous system, in which case it is called primary brain tumor; or, its origin may be in another organ and secondarily migrate to the brain, known in this case as metastatic tumor.
Brain lesions produced by the tumor may be due to, especially prevalent in malignancies, or mass effect, compression, these can produce on adjacent structures, such as meningiomas invasive phenomena.
Brain Tumor Symptoms
Specialists in neurosurgery say the main symptom of a brain tumor is headache, the headache. There are certain characteristics of this headache. It is predominantly morning, you can wake up at night to the patient, increases with Valsalva maneuvers (such as sneezing ...) and in many cases, is associated with vomiting, after which usually improve headaches.
Although headache is the most common symptom, it is very unspecific. A very small number of headaches to brain tumors should be.
Symptoms may vary depending on the area or areas concerned thereby. They may present with seizures, loss of motor function or language bradipsiquia (slowness of thought), lack of concentration and changes of character or behavior.
What causes a brain tumor?
Most of the causes of brain tumors is currently unknown. However, yes they have been able to determine certain risk factors. These are:
- genetic predisposition
- ionizing radiation
There is great controversy about other risk factors, such as mobile phones, whose relationship has not been demonstrated in a reliable way.