Disease or Syndrome
pyonephrosis
Subclass of:
Hydronephrosis
Etymology:
Greek pyos = pus + nephros = kidney + -osis = condition
Definitions related to pyonephrosis:
  • Distention of KIDNEY with the presence of PUS and suppurative destruction of the renal parenchyma. It is often associated with renal obstruction and can lead to total or nearly total loss of renal function.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Pus within the collecting system of the kidney.
    NCI
    U.S. National Cancer Institute, 2021
  • Urinary tract obstruction in the presence of pyelonephritis may lead to the collection of white blood cells (WBCs), bacteria, and debris in the collecting system, which may subsequently result in pyonephrosis. In this situation, with the accompanying
    Medscape
    WebMD, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.