CASE 57 A 60-year-old man presents with right-sided abdominal pain, fever, and an elevated white blood cell count. Contrast-enhanced computed tomography (CT) images show an enlarged right kidney with linear areas of low attenuation (Fig. 57.1). There is right-sided perinephric stranding. The left kidney is of normal size and demonstrates normal enhancement. Pyelonephritis of the right kidney
Clinical Presentation
Radiologic Findings
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Differential Diagnosis
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Background