Kidney sweat sign
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At the time the case was submitted for publication Patrick J Rock had no recorded disclosures.View Patrick J Rock's current disclosures
History of hypertension, diabetes, myocardial infarction and left nephrectomy presents to the emergency department with shortness of breath.
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There is no renal mass, calculi, or hydronephrosis. Increased renal parenchymal echogenicity is consistent with the patient's history of chronic kidney disease stage III. There is a small amount of right perinephric fluid.
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This is an example of the kidney sweat sign in a patient with known chronic kidney disease. The kidney sweat sign can be seen in patients with renal failure and is thought to represent perinephric edema. The patient was admitted for acute pulmonary edema, hypertensive emergency, and acute kidney injury on underlying chronic kidney disease.
- Yassa NA, Peng M, Ralls PW. Perirenal lucency ("kidney sweat"): a new sign of renal failure. (1999) AJR. American journal of roentgenology. 173 (4): 1075-7. doi:10.2214/ajr.173.4.10511182 - Pubmed