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Definition of Chronic pyelonephritis
1. Noun. Pyelonephritis that develops slowly and can lead to renal failure if untreated; often associated with a kidney stone or with narrowing of the urinary passageways.
Generic synonyms: Pyelonephritis
Medical Definition of Chronic pyelonephritis
1. Chronic inflammation of the renal parenchyma and pelvis resulting from bacterial infection, characterised by calyceal deformities and overlying large flat renal scars with patchy distribution. (05 Mar 2000)