Focal pyelonephritis

Case contributed by Dr Jeremy Jones


Recent symptoms of UTI. Pyrexia. WBC in urine.

Patient Data

Age: 7 years
Gender: Female

In the interpolar region of the right kidney is an ovoid heterogeneous avascular mass. With the features of sepsis and infection, features here are most in keeping with focal pyelonephritis.

Case Discussion

Features of focal pyelonephritis. There is no collection, so this is not an abscess.

While other differentials may be considered, the presentation with sepsis and appropriate urinalysis makes infection the most likely diagnosis. Complete resolution at 6 months was confirmed on ultrasound.

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Case information

rID: 27381
Published: 1st Feb 2014
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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