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目的 探讨成人急性局灶性细菌性肾炎(AFBN)的CT特征.方法 回顾性分析11例经临床确诊或病理证实的成人AFBN患者的资料.所有患者均行CT平扫和增强扫描,影像征象由2名放射科医师同时分析.结果 11例患者,共14只肾脏受累,22个病灶.病灶呈“楔形”和“肿块形”两种形态.前者共17个病灶,后者5个.所有病灶均表现为低密度、轻度强化.11例患者,5例多发,6例单发.5例出现肾周结构异常.2例表现为单发肿块形病灶,CT表现酷似乏血供肾肿瘤.结论 成人AFBN在CT上有其表现特点,依据这些特点可以对其做出较准确的诊断.“,”Objective To study the CT features of adult acute focal bacterial nephritis (AFBN).Methods CT images in 11 adult patients with acute AFBNs proven by clinical findings or histopathology were retrospectively analyzed.The unenhanced and contrast-enhanced CT were performed in all patients.Two radiologists reviewed CT images and the CT findings were analyzed simultaneously.Results There were 14 kidneys involved in all of the 11 patients,which contained 22 lesions.These lesions showed two shapes of wedge and mass-like shape.17 lesions showed wedge shape and 5 lesions mass-like shape.All lesions demonstrated hypoattenuation in unenhanced CT and mild enhancement in contrast-enhanced CT.In the 11 patients,5 had 2 or more than 2 lesions and the others had only one.5 patients showed perirenal structural abnormalities.2 patients manifested single mass-like lesions,which mimic hypovascular renal tumor on CT images.Conclusion Acute AFBNs can be diagnosed accurately based on the features displayed on CT.