英语翻译3 讨论脑转移瘤是由颅外原发肿瘤通过血行转移的方式到达颅内的恶性肿瘤,是肿瘤患者常出现的病变,发生率为20％～3

英语翻译
3 讨论
脑转移瘤是由颅外原发肿瘤通过血行转移的方式到达颅内的恶性肿瘤,是肿瘤患者常出现的病变,发生率为20％～35％[1].占脑瘤患者的10％～15％[2].随着全身肿瘤整体治疗水平的提高和患者生存期的延长,其发生率在不断升高,检出率也随着影像学检查手段的发展明显提高.脑转移瘤80％～90％发生于幕上,以额叶、顶叶多见,其次为颞叶和枕叶.常见原发部位以肺、乳腺多见.大部分患者有神经系统症状,如果不予治疗中位生存期为1～2个月[3],是癌症患者死亡的主要原因之一.1.The brain shifts the lump is the primary tumor arrives at the encephalic by the skull outside through the blood line of shift way the malignant tumor,is the pathological change which the tumor patient often appears,the formation rate is 20%~35%[1].Occupies encephaloma patient's 10%~15%[2].Along with the whole body tumor whole treatment level's enhancement and the patient lifetime's extension,its formation rate is elevating unceasingly,detection rate also along with phantom study inspection method development distinct enhancement.The brain shifts lump 80%~90% to occur on the curtain,by the temporal lobe,the parietal lobe sees,next for temporal lobe and occipital lobe.The common primary spot by the lung,the mammary gland sees much.The majority of patients have the nervous system symptom,if does not give in the treatment the position lifetime is 2 month [3],is one which of primary causes the cancer patient dies.The brain shifts the lump the treatment goal to lie in the improvement symptom,to lengthen the patient life and the enhancement survival quality.The traditional treatment technique for the hormone treatment,the entire brain radiotherapy and the surgery excises,but the curative effect is not ideal.The hormone treatment lifetime is 3 months,the entire brain radiotherapy lifetime enhances to 6 month [4],the pure surgery treats the single shot brain to shift stove's position lifetime is 6.5-11.5 month [5],the surgery excises adds the entire brain radiotherapy to make the lifetime to lengthen to 10~16 month [3],but the surgery treats receives the surgery to refer to drafts,lump body limits and so on growth spot,quantity,and cannot guarantee will excise the tumor Asia clinical stove completely,in the technique latter period of time in the home position recrudescence,after the tumor excision,will have a part of patient to present the serious complication,the quality of life is low,therefore the surgery is performed not easily by the patient.But the entire brain radiotherapy result's irreversibility Nervous tissue complication has limited the entire brain's radiological dose,infection recurrence rate high [6

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