Diffusion imaging in pyelonephritis
History of recurrent UTI with left flank pain, urine positive for pus
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Multiple linear hypointense striations seen in parenchyma
In this case DWI was used as an adjunct to diagnosis.
Restricted diffusion on DWI in kidneys needs to be interpreted within the clinical context- renal infarcts due to traumatic renal artery dissection also have the same appearance.
- 1. Verswijvel G, Vandecaveye V, Gelin G et-al. Diffusion-weighted MR imaging in the evaluation of renal infection: preliminary results. JBR-BTR. 2002;85 (2): 100-3. Pubmed citation