Emphysematous pyelonephritis
- gas in renal parenchyma
- focal or diffuse
- may involve collecting system and perinephric space
- high mortality
- may require nephrectomy
Emphysematous pyelitis
- gas in pelvicalyceal system and ureter alone
- low mortality
- percutaneous drainage and antibiotics helps
Emphysematous cystitis
- gas in urinary bladder and bladder wall
- typically in diabetics