急性局灶性细菌性肾炎（acutefocalbecterialnePhritis，AFBN）常由泌尿系逆行感染引起，少数由血行感染引起，后者常缺乏泌尿系感染的临床表现，需借助影像学方法以明确诊断。现将4例该病的CT表现报告如下。材料和方法AFBN4例，男性2例，女性2例，发病年龄32～65岁，平均sl岁 Acute focal bacterial nephritis (AFBN) often caused by retrograde urinary tract infection, a small number caused by blood infection, the latter often lack the clinical manifestations of urinary tract infection, the need to use imaging methods to confirm the diagnosis. Now 4 cases of CT manifestations of the disease are reported as follows. Materials and methods AFBN 4 cases, 2 males and 2 females, the age of onset 32 ​​to 65 years, mean sl years