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Acute interstitial nephritis manifesting as a persistent nephogram.
Radiol Case Rep
January 2023
AZ Maria Middelares, Buitenring-Sint-Denijs 30, Ghent 9000, Belgium.
We report a case of a 61-year-old woman who presented to the emergency department with high inflammatory parameters and acute renal failure. Marked enlarged kidneys with persistent nephrogram were found on contrast-enhanced computed tomography . Renal biopsy showed acute interstitial nephritis.
View Article and Find Full Text PDFMarked bilateral global persistent CT nephrogram 48 h after percutaneous coronary intervention with contrast-induced nephropathy requiring transient hemodialysis with severe cardiac dysfunction.
CEN Case Rep
February 2023
Department of Cardiovascular, Renal, and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.
An iodinated contrast medium (CM) is generally excreted into the urinary tract within 3 min after administration. However, some cases present a persistent kidney nephrogram several hours after administration of CM. This phenomenon seems to be associated with the development and acceleration of contrast-induced nephropathy (CIN).
View Article and Find Full Text PDFName That Nephrogram: Asymmetric Renal Enhancement in the Acute Care Setting.
Curr Probl Diagn Radiol
February 2020
University of Massachusetts Medical School, Department of Radiology, Worcester, MA.. Electronic address:
Disorders of the kidney and urinary collecting system are common encountered in the acute care setting. Computed tomography has progressively replaced intravenous pyelography for the evaluation of most urinary tract pathology including acute flank pain, suspected malignancy, congenital abnormalities, anatomical variants, and inflammatory/vascular conditions through evaluation of the "nephrogram" produced by intravenous contrast material filtering through the kidneys. In this review, we describe the most common types of abnormal nephrograms seen on renal computed tomography, and highlight the salient features and conditions associated with them, in addition to a pictorial review with specific and interesting related cases.
View Article and Find Full Text PDFBilateral Sustained Nephrograms After Parenteral Administration of Iodinated Contrast Material: A Potential Biomarker for Acute Kidney Injury, Dialysis, and Mortality.
Mayo Clin Proc
July 2018
Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
Objective: To determine whether persistent bilateral global nephrograms are associated with acute kidney injury (AKI), dialysis, and mortality.
Patients And Methods: All patients who underwent (1) contrast-enhanced computed tomography (CT) or cardiac catheterization with iohexol between January 1, 2000, and December 31, 2014, and (2) noncontrast abdominal CT in the subsequent 24±6 hours were identified. Patients without preprocedure and postprocedure creatinine measurements or who received additional contrast material were excluded.
Acute Renal Failure with Severe Loin Pain and Patchy Renal Vasoconstriction in a Patient without Hypouricemia, Provoked by Epileptic Seizure.
Intern Med
February 2018
Department of Nephrology and Renal Replacement Therapy, Nagoya University Graduate School of Medicine, Japan.
A 26-year-old Japanese man without hypouricemia and with 3 previous episodes of seizures concurrent with acute kidney injury (AKI) was admitted due to an epileptic seizure, lower back pain and AKI. His creatinine kinase levels were slightly elevated. Patchy renal ischemia on contrast-enhanced computed tomography and persistent residual contrast medium was observed, consistent with acute renal failure with severe loin pain and patchy renal ischemia after anaerobic exercise (ALPE).
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