脑脓肿为常见的颅内化脓性疾病，ＣＴ可确定脑脓肿的存在及其位置、大小、数目和形状。ＣＴ征象多具特征性，结合典型临床表现多可确诊。但由于抗生素的广泛应用，脑脓肿的临床表现多已不典型，并且其ＣＴ表现与胶质瘤、转移瘤等有时难以鉴别，可导致误诊。本组４例脑脓肿即有 Brain abscess is a common intracranial purulent disease. CT identifies the brain abscess and its location, size, number and shape. CT signs and more features, combined with the typical clinical manifestations can be diagnosed. However, due to the widespread use of antibiotics, the clinical manifestations of brain abscess have more than typical, and its CT manifestations and glioma, metastases, sometimes difficult to identify, can lead to misdiagnosis. This group of 4 cases of brain abscess that