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A brain metastasis is a cancer that has metastasized (spread) to the brain from another location in the body. As primary cancer treatments such as surgery, radiation therapy and chemotherapy have become more effective in the past few decades, people with cancer are living longer after initial treatment than ever before. However, brain metastases still occur in many patients months or even years after their original cancer treatment. Brain metastases have a poor prognosis for cure, but modern treatments are allowing patients to live months and sometimes years after the diagnosis.〔http://www.rtanswers.com/treatmentinformation/cancertypes/brainmets/index.aspx〕 ==Symptoms== Often, patients have no obvious symptoms to alert them that their cancer has spread to the brain. Follow-up doctor visits and brain scans may be needed to determine the presence of brain metastases.〔http://www.rtanswers.com/treatmentinformation/cancertypes/brainmets/signs.aspx〕 Brain metastases can cause a wide variety of symptoms, many of which are also present in minor, more common conditions. They include: * Vertigo * New onset headaches * Cognitive, personality, and behavioral changes. * Nausea and vomiting * Memory loss * Increased intracranial pressure * Paraesthesias * Vision disorder * Bells palsy * Ataxia * Seizures 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「brain metastasis」の詳細全文を読む スポンサード リンク
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