Categorized | Health

Glioma

Glioma is an aggressive form of cancer that arises from malignant glial cells, which protect and support the nerve cells, in the spine or, more frequently, the brain. Gliomas account for roughly half of diagnosed brain tumours. Like other brain tumours, glioma is very dangerous, because it is likely to spread to further tissues of the brain, damaging healthy cells. There are three most common types of gliomas: astrocytoma (starting in the astrocytes), ependymoma (beginning in the ependymal cells) and oligodendroglioma (developing in the oligodendrocytes). There is also a fourth type, called mixed glioma, which is a combination of all or some of the other three types. Mixed gliomas are more likely in men than women as well as in adults than children.

Most common symptoms shown by gliomas are headaches and seizures. Other symptoms depend on the area that is affected by the tumour and include paralysis on one side of the body, change in personality and mood, abnormalities in speech, balance and memory as well as difficulty writing or drawing. High doses of radiotherapy are usually not used for treatment of gliomas, since they tend to damage healthy tissue of the brain.

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