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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brain tumor
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brain tumor symptoms
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chemotherapy
glioblastoma
glioblastoma multiforme
leukemia
pituitary tumor
symptoms of brain tumor
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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.
brain cancer
brain cancer symptoms
brain cancer treatment
brain tumor
brain tumor causes
brain tumor symptoms
brain tumors
brain tumour
chemotherapy
glioblastoma
glioblastoma multiforme
leukemia
pituitary tumor
symptoms of brain tumor
For mOre videos plz follow
thanks for watching
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