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Definition of Acute pyelonephritis
1. Noun. Pyelonephritis resulting from the spread of a bladder infection.
Generic synonyms: Pyelonephritis
Medical Definition of Acute pyelonephritis
1. Acute inflammation of the renal parenchyma and pelvis characterised by small cortical abscesses and yellowish streaks in the medulla due to pus in the collecting tubules and interstitial tissue. (05 Mar 2000)