Brain Cancer Treatment | Brain Cancer Grow Fast in Human Life | Health4Save Updated 2016

A brain tumor or intracranial neoplasm occurs when abnormal cells form within the brain.[1] There are two main types of tumors: malignant or cancerous tumors and benign tumors.[1] Cancerous tumors can be divided into primary tumors that start within the brain, and secondary tumors that have spread from somewhere else, known as brain metastasis tumors.[2] This article deals mainly with tumors that start within the brain. All types of brain tumors may produce symptoms that vary depending on the part of the brain involved..

The cause of most brain tumors is unknown.[1] Risk factors that may occasionally be involved include a number of inherited conditions known as neurofibromatosis as well as exposure to the industrial chemical vinyl chloride, the Epstein-Barr virus, and ionizing radiation.[1][2][4] While concern has been raised about mobile phone use, the evidence is not clear.[4] The most common types of primary tumors in adults are: meningiomas (usually benign), and astrocytomas such as glioblastomas.[2] In children, the most common type is a malignant medulloblastoma.[4] Diagnosis is usually by medical examination along with computed tomography or magnetic resonance imaging.[1] This is then often confirmed by a biopsy.[2] Based on the findings, the tumors are divided into different grades of severity.

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