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Kidney sweat sign

The kidney sweat sign refers to the presence of thin, hypoechoic, extracapsular fluid collections around kidneys in renal failure patients. This fluid is thought to represent perirenal edema. It can be appreciated on ultrasound, CT and MRI. 

Differential diagnosis

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Article information

rID: 25555
System: Urogenital
Section: Signs
Tag: refs, stub
Synonyms or Alternate Spellings:
  • Sweating kidney sign
  • Renal sweat sign

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