目的:通过脑血吸虫病的CT表现和术后病理材料进行回顾性分析,探讨脑血吸虫病的CT分型及其价值.材料与方法:搜集1990~1998年我院脑血吸虫病26例,其中12例经手术病理证实,14例CT结合患者疫水接触史和实验室检查证实,对CT表现进行分析,结合病理讨论CT分型.结果:25例为单发病灶,1例为多发病灶(2个灶),共27个病灶.右侧大脑半球16个病灶(59.3％),其中额叶6个,额顶叶3个,枕顶叶7个.左侧大脑半球11个病灶(40.7％),其中额叶4个,额顶叶2个,枕顶叶5个.病灶呈炎性水肿样改变2例,梗塞样改变3例,不规则结节伴水肿13例,局限性脑萎缩8例.脑炎型2例(7.8％).脑梗塞型3例(11.5％),结节型13例(50％),另8例(30.8％)局限性脑萎缩表现届后遗改变,不宜分型.结论:CT分型有助于诊断和临床治疗的选择.“,”Objective: To discuss CT classification of cerebral schistosomiasis and its clinical value through analyzing the CT features and postsurgery pathological findings in 12 cases. Materials and Methods: During 1990~1998, 26 paheme with pathalodcally (n = 12) or clinically (n =14) confrmed cerebral schistosomiasis underwent brain CT scanning. The CT features were analyzed. Results: Univlateral lesions were found in 25 cases, and bilateral in one. Sixteen lesions (59. 3 % ) were located in right cerebral hemisphere, including frontal lobe (n = 6), frontoparietal lobe (n = 3) and parieto-occipital lobe (n = 7), while 11 lesions (40. 7 % ) in left cerebnd hemisphere, including frontal lobe (n = 4), frontoparietal lobe (n = 2) and parieto-occipital lobe (n = 5). The lesion appeared on CT as edematous (n = 2), infcot-like (n = 3), irregular nodule with edare (n = 4 ), or local cerebral atrophy (n = 8 ). Based on CT appearances, cerebral schistosomiasis was classified into the following types: cerebritis type (n = 2, 7. 8% ), cerebral infarct type (n = 3, 11. 5% ) and nodular type (n = 13, 50% ). The remaining 8 cases (30. 8% )presented cerebral atrophy, being regarded as residual changes, thus, unsuitable for classification. Conclusion: cr classification of cerebral schisotsomiasis might be useful for the choice of clinical treatment.