Zulfiqar Maria, Ubilla Cristián Varela, Nicola Refky, Menias Christine O
Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St Louis, MO 63110, USA.
Radiology Department, Clinica Davila, Avenida Recoleta 464, Recoleta, Santiago 8431657, Chile.
Radiol Clin North Am. 2020 Sep;58(5):909-923. doi: 10.1016/j.rcl.2020.05.004. Epub 2020 Jul 14.
Acute pyelonephritis is a bacterial infection of the renal parenchyma and collecting system. Diagnosis is based on clinical findings of fever, flank pain, and urinary tract infection. Computed tomography findings include renal enlargement with wedge-shaped heterogeneous areas of decreased enhancement, known as a "striated nephrogram." Imaging is primarily used to diagnose complications such as emphysematous pyelonephritis, renal abscess, and pyonephrosis. Chronic pyelonephritis can have varying appearances on imaging ranging from xanthogranulomatous pyelonephritis or, in extreme cases, renal replacement lipomatosis.
急性肾盂肾炎是肾实质和集合系统的细菌感染。诊断基于发热、胁腹疼痛和尿路感染的临床表现。计算机断层扫描结果包括肾脏增大，伴有楔形不均匀强化减低区域，即所谓的“条纹状肾图”。影像学主要用于诊断诸如气肿性肾盂肾炎、肾脓肿和肾积脓等并发症。慢性肾盂肾炎在影像学上可有不同表现，从黄色肉芽肿性肾盂肾炎到极端情况下的肾替代性脂肪增多症。
