Presentation
Fever and flank pain
- Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
From the case:
Lobar nephronia
Coronal liver window

Wedge of poorly perfused renal parenchyma: lobar nephronia
Case Discussion
Lobar nephronia refers to an intermediate stage between acute pyelonephritis andrenal abscess, and is a focal region of interstitial nephritis.
It appears as a wedge of poorly perfused renal parenchyma, without a cortical rim sign.