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Acute tubular necrosis

Case contributed by: Dr Morlie L Wang

Presentation:

Patient went coronary angiogram 9 hours prior.

Patient Data:

Age: 56
Gender: Male
From the case: Acute tubular necrosis
Modality: CT
  • <p>acute tubular necrosis</p>

renal excretory phase

acute tubular necrosis

The kidneys have a mottled appearance containing multiple areas of high density striations.

Case Discussion:

Bilateral 'striated nephrogram'  was the salient finding.

Differential diagnosis

  1. Acute tubular necrosis
  2. Acute pyelonephritis
  3. Hypotension

Final diagnosis: Acute tubular necrosis. Striated nephrogram in this case depicts contrast material trapped in necrosed tubules.

References:

  1. 1. Saunders HS, Dyer RB, Shifrin RY et-al. The CT nephrogram: implications for evaluation of urinary tract disease. Radiographics. 1995;15 (5): 1069-85. Radiographics (citation) - Pubmed citation

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