Rigsby C M, Rosenfield A T, Glickman M G, Hodson J
AJR Am J Roentgenol. 1986 Jun;146(6):1173-7. doi: 10.2214/ajr.146.6.1173.
Five patients with acute focal bacterial nephritis and hematuria had sonographic and CT findings atypical for renal infection. Sonographically, each presented with an echogenic focus in the renal parenchyma. Noncontrast CT images showed an area of increased density in the corresponding segment of the kidney in three patients, mixed high and low density in one patient, and low density alone in the remaining patient. It is proposed that these appearances result from the presence of hemorrhage at different stages, associated with focal infection. Venous compromise is suggested as the etiology.
5例急性局灶性细菌性肾炎伴血尿患者的超声和CT表现不符合肾感染的典型表现。超声检查时，每例患者肾实质内均出现一个回声增强灶。3例患者的非增强CT图像显示肾脏相应节段密度增高，1例患者为高低密度混合，其余1例患者仅为低密度。据推测，这些表现是由不同阶段的出血与局灶性感染相关所致。病因提示为静脉受压。
