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The diagnostic role of renal size

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The determination of renal size may help in the diagnosis of the renal disease.

The main correlations are:

  • normal sized kidneys:
    • acute tubular necrosis
    • acute obstruction
    • myeloma
    • amyloidosis
    • polyarteritis

  • bilateral small kidneys:
    • chronic renal failure

  • bilateral large kidneys:
    • amyloidosis
    • renal vein thrombosis
    • bilateral hydronephrosis
    • polycystic disease of the kidney
    • acute glomerulonephritis
    • acute interstitial nephritis

  • kidneys of unequal size (>1.5 cm difference):
    • proximal urinary obstruction
    • reflux nephropathy
    • papillary necrosis (rare)
    • renal vascular disease (rare)

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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