Brain Tumor Essay

1359 words - 5 pages

DefinitionA brain tumor is a mass or growth of abnormal cells in your brain.Many different types of brain tumors exist. Some brain tumors are noncancerous (benign), and some brain tumors are cancerous (malignant). Brain tumors can begin in your brain (primary brain tumors), or cancer can begin in other parts of your body and spread to your brain (secondary brain tumors).Brain tumor treatment options depend on the type of brain tumor you have, as well as its size and location.SymptomsThe signs and symptoms of a brain tumor vary greatly and depend on the brain tumor's size, location and rate of growth.General signs and symptoms caused by brain tumors may include:New onset or change in pattern of headachesHeadaches that gradually become more frequent and more severeUnexplained nausea or vomitingVision problems, such as blurred vision, double vision or loss of peripheral visionGradual loss of sensation or movement in an arm or a legDifficulty with balanceSpeech difficultiesConfusion in everyday mattersPersonality or behavior changesSeizures, especially in someone who doesn't have a history of seizuresHearing problemsCausesPrimary brain tumors originate in the brain itself or in tissues close to it, such as in the brain-covering membranes (meninges), cranial nerves, pituitary gland or pineal gland. Primary brain tumors begin when normal cells acquire errors (mutations) in their DNA. These mutations allow cells to grow and divide at increased rates and to continue living when healthy cells would die. The result is a mass of abnormal cells, which forms a tumor.Primary brain tumors are much less common than are secondary brain tumors, in which cancer begins elsewhere and spreads to the brain. Many different types of primary brain tumors exist. Each gets its name from the type of cells involved. Examples include:Acoustic neuromaGerm cell tumorMedulloblastomaSecondary (metastatic) brain tumors are tumors that result from cancer that starts elsewhere in your body and then spreads (metastasizes) to your brain. Secondary brain tumors most often occur in people who have a history of cancer. But in rare cases, a metastatic brain tumor may be the first sign of cancer that began elsewhere in your body.Secondary brain tumors are far more common than are primary brain tumors. Any cancer can spread to the brain, but the most common types include:Breast cancerColon cancerKidney cancerLung cancerMelanomaRisk FactorsThough doctors aren't sure what causes the genetic mutations that can lead to primary brain tumors, they've identified factors that may increase your risk of a brain tumor. Risk factors include:Your race. In general, brain tumors occur more frequently in whites than they do in people of other races.Your age. Your risk of a brain tumor increases as you age. Brain tumors are most common in older adults. However, a brain tumor can occur at any age. And certain types of brain tumors, such as medulloblastomas, occur almost exclusively in children.Exposure to...

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