Acute renal failure post IV contrast injection: CT findings

Case contributed by Chris O'Donnell
Diagnosis certain


Acute renal failure (anuria) 48 hours post IV radiographic contrast injection for assessment of disseminated malignancy. eGFR of 35.

Patient Data

Age: 75 years
Gender: Male

CT performed 2 days later...


CT performed 2 days later prior to biopsy no IV C+ administered

Residual contrast in the renal parenchyma but not the collecting systems without contrast in other organs or blood vessels despite isolated IV contrast injection 2 days previously.

Widespread malignancy with relatively normal kidneys showing contrast enhancement

Case Discussion

Contrast-induced acute kidney injury (CI-AKI) is uncommon and usually in patients with pre-existing renal dysfunction (ie eGFR < 30), dehydration and/or large volume contrast injection (> 300mls at one sitting) such as my occur in cardiac, vascular or neuro-interventional procedures.

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