Tags: Disease.
Pyelonephritis (from Greek πήληξ – pyelum meaning renal pelvis νεφρός – nephros meaning kidney and -itis meaning inflammation) is an inflammation of the renal parenchyma calyces and pelvis. It is commonly caused by bacterial infection that has spread up the urinary tract or travelled through the bloodstream to the kidneys. A similar term is pyelitis which means inflammation of the pelvis and calyces.
