Is A

Kidney infection

Pyelonephritis

Subtypes

Acute hemorrhagic pyelonephritis

May Cause

Bilateral large kidneys

Bilaterally decreased renal contrast concentration

Decreased renal cortical echogenicity

Focal defect in nephrogram

Focal renal parenchymal scar

Hypoechoic renal mass

Increased renal artery diastolic flow

Increased resistance index of renal transplant

Infundibular narrowing

Renal parenchymal gas

Sonographically ill-defined renal parenchymal mass

Unilateral large kidney

Unilaterally decreased renal contrast concentration