Perinephritis

Perinephritis is a bacterial infection between the renal capsule and perinephric fascia; if it forms an abscess it is a perinephric abscess. It mostly spreads directly from pyelonephritis, usually gram-negative bacilli, especially E. coli. A minority spreads hematogenously from other foci to the cortex forming small abscesses that rupture into the perinephric space; these are mostly gram-positive cocci. Typical features are chills, high fever and renal pain; spread to adjacent organs causes their infection.

Common Symptoms

Chills; severe pain; upper abdominal pain; renal abscess; abscess

Causes

Perinephritis/perinephric abscess may come from many pathogens; with widespread broad-spectrum antibiotics, hematogenous infection has declined, shifting from S. aureus to E. coli as the main pathogen.

Treatment

Antibiotics, drainage if abscess forms

Prevention

Treat pyelonephritis and renal infection promptly to prevent spread.

Recommended Department

It is recommended to visit the nephrology department; before the visit you may first book an appointment and connect with experts through this platform.

Warm reminder: The above information is provided for health education reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek care at a regular hospital in time.