Figure 1.

Nine-year-old male patient presenting with pain in the right flank. Laboratory examination revealed increased leukocytes (12.2 × 10⁹ cells/L) and CRP (153 mg/L). MRI scan with routine protocol for the abdomen was performed. It showed only slight signal alterations in T2 HASTE and T1w VIBE (postcontrast). DWI-b800 clearly depicted wedge-shaped, striated areas of high signal intensity in the right kidney with correlating low signal in DWI-ADC. The diagnosis of renal infection was finally done on the basis of clinical criteria.