弥漫型黄色肉芽肿性肾盂肾炎CT表现分析

CT findings of diffuse xanthogranulomatous pyelonephritis

目的探讨黄色肉芽肿性肾盂肾炎的CT表现特征。方法回顾性分析经手术病理证实的6例弥漫型黄色肉芽肿性肾盂肾炎的CT征象。结果 6例中,5例弥漫型黄色肉芽肿性肾盂肾炎肾盂内有铸形结石,6例均有坏死腔,均无肾积水,3例可见典型的"熊掌印征",2例有肾周筋膜增厚伴腰大肌肿胀,1例肾周积液并穿破后腹壁形成瘘管。结论 CT诊断弥漫型黄色肉芽肿性肾盂肾炎具有较高价值。

Objective To determine the CT characteristics of diffuse xanthogranulomatous pyelonephritis. Methods CT of 6 patients with histologically confirmed diffuse xanthogranulomatous pyelonephritis was retrospectively analyzed. Results CT demonstrated renal stones （5）, necrotic areas without hydronephrosis （6）, bear＇s-paw sign （3）, renal fascial thickening and psoas muscle swelling （2）, perirenal effusion and retroperitoneal fistula （1）. Conclusion CT appearance may aid the diagnosis of diffuse xanthogranulomatous pyelonephritis.