Xanthogranulomatous pyelonephritis ... muscle abscesses caused by Staphylococci aereus in one of the patient and Serratia mascerentes in the other. Both of the patients had renal calculus.
Kidney infections (pyelonephritis) can occur when bacteria from the urinary tract travel up the urethra and affect one or both kidneys. Sometimes, the bacteria that cause kidney, or renal ...