Pyelonephritis (plural: pyelonephritides) refers to an upper urinary (renal) tract infection with associated renal pelvis, renal calyceal and renal parenchymal inflammation, and comprises a heterogeneous group of conditions.
- bacterial pyelonephritis
- chronic pyelonephritis
- renal tuberculosis
- emphysematous pyelitis
- emphysematous pyelonephritis
- malacoplakia
- fungal pyelonephritis
- xanthogranulomatous pyelonephritis (XGP)