Presentation
Right flank pain, fever.
Patient Data
Age: 20 years
Gender: Female
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Axial non-contrast

CT images showing multiple linear foci of non-enhancing scattered through right kidney parenchyma, involving also the cortex and better demonstrated on renal excretory images. Remainder exams is unremarkable.
Case Discussion
The imaging findings are in keeping with acute pyelonephritis, remainder clinical data supported this diagnosis.
Antibiotic therapy was prescribed to be taken at home and the patient experienced clinical improvement.