Wan Y L, Lee T Y, Bullard M J, Tsai C C
Department of Diagnostic Radiology, Chang Gung Medical Center at Linkou, Tao-Yuan, Taiwan.
Radiology. 1996 Feb;198(2):433-8. doi: 10.1148/radiology.198.2.8596845.
To correlate imaging findings of types I and II emphysematous pyelonephritis (EPN) with clinical course and prognosis.
The imaging studies and clinical outcome in 38 patients with EPN were retrospectively studied. The imaging studies performed included radiography (n = 33), computed tomography (n = 31), and ultrasonography (n = 35).
Two types of EPN were identified. Type I EPN was characterized by parenchymal destruction with either absence of fluid collection or presence of streaky or mottled gas. Type II EPN was characterized as either renal or perirenal fluid collections with bubbly or loculated gas or gas in the collecting system. The mortality rate for type I EPN (69%) was higher than that for type II (18%). Type I EPN tended to have a more fulminant course with a significantly shorter interval from clinical onset to death (P < .001).
Two distinct types of EPN can be seen radiologically, and the differentiation is important due to the prognostic difference.
将I型和II型气肿性肾盂肾炎（EPN）的影像学表现与临床病程及预后相关联。
回顾性研究38例EPN患者的影像学检查及临床结果。所进行的影像学检查包括X线摄影（n = 33）、计算机断层扫描（n = 31）和超声检查（n = 35）。
识别出两种类型的EPN。I型EPN的特征是实质破坏，无液体积聚或有条纹状或斑片状气体。II型EPN的特征是肾内或肾周液体积聚，伴有气泡状或分隔状气体或集合系统内有气体。I型EPN的死亡率（69%）高于II型（18%）。I型EPN的病程往往更急，从临床发病到死亡的间隔时间明显更短（P < .001）。
影像学上可观察到两种不同类型的EPN，由于预后不同，鉴别诊断很重要。
