• renal
  • Chronic pyelonephritis is a complex renal disorder characterised by chronic tubulointerstitial inflammation and deep segmental cortical renal scarring and clubbing of the pelvic calyces as the papillae retract into the scars. (bmj.com)
  • kidney
  • Pyelonephritis - from the Greek 'pyelo' (pelvis), 'nephros' (kidney), and 'itis' (inflammation) - refers to an inflammation of the kidney that can be acute, recurrent, or chronic. (bmj.com)