隐源性脑脓肿的影像学误诊问题

The Problem about Imaging Misdiagnosis of Cryptogenic Brain Abscess

目的 探讨如何提高隐源性脑脓肿的诊断水平 ,降低误诊率。方法 回顾分析 2 6例经头颅 CT或 MRI或临床确诊的隐源性脑脓肿。结果 本组 2 6例首次行头颅 CT或 MRI描扫时误诊 10例 ,总误诊率为 38.46 % ,其中 4例误诊为脑囊虫病 ,5例误诊为脑转移瘤 ,1例误诊为脑胶质瘤。结论 CT、MRI是隐源性脑脓肿必不可少的检查手段 ,可以明显提高确诊率。但要注意与脑转移瘤、脑囊虫病、脑胶质瘤及结核瘤等进行鉴别 。

Objective To investigate the methods that improve the diagnosis level of cryptogenic brain abscess in order to decrease the rate of misdiagnosis.Methods 26 cases of cryptogenic brain abcesses that confirmed by CT scan or clinic were analyzed.Results At first imaging scanning of 10 cases were misdiagnosed (38.46%),including 4 cases of cysticercosis,5 cases of metastasis,1 case of glioma in this group.Conclusions It is necessary that cyrptogenic bran abscess were diagnosed by CT scan or MRI scan.Using Imaging methods should improve the rate of denifite diagnosis of crytogenic brain abcesses.However it ought to pay attention to distinguish with metastasis,cysticercosis,glioma and tuberculoma for decreasing the rate of misdiagnosis.