脑积水临床较常见 ,CT检查既能确诊 ,又可明确病因[1] ,对临床治疗有很重要的指导价值。我院1 998年 3月～ 2 0 0 1年 4月诊治 42例 ,现对其临床及CT表现作回顾性分析。1　临床资料1 .1　一般资料　 42例 CT结果均符合脑积水的诊断标准 [2 ] ,其中男性 31例 ,女性 1 1例 ,年龄 Hydrocephalus clinical more common, CT examination can be diagnosed, but also a clear cause [1], the clinical treatment has very important guiding value. Our hospital from March 1998 to April 2001 treatment of 42 cases, now its clinical and CT findings for retrospective analysis. 1 Clinical data 1.1 General information 42 cases of CT findings are in line with the diagnostic criteria of hydrocephalus [2], of which 31 males and 11 females, age