脑水肿是多种病因所致的一种病理状态。常为许多全身性疾病和颅内疾病的一种危险并发症。如不及时处理常因此致死。在某些严重的全身性疾病中,常因病情危重而忽视脑水肿的发生。故从临床角度出发,如何在各种疾病中确定已出现脑水肿,是一个十分重要的问题。 Brain edema is caused by a variety of etiology of a pathological state. Often a dangerous complication of many systemic and intracranial conditions. If you do not promptly dealt with it, you are killed. In some serious systemic diseases, often due to critically ill and ignore the occurrence of cerebral edema. Therefore, from a clinical perspective, it is a very important issue to determine how brain edema has occurred in various diseases.