Spotted nephrogram

Last revised by Zhen Pang Chang on 31 May 2023

A spotted nephrogram is a descriptive term indicating an appearance of patchy, segmental and subsegmental renal parenchymal enhancement.


The pattern is indicative of focal areas of cortical ischemia or necrosis, as a result of small vessel occlusion. This abnormal perfusion pattern can be seen on angiography, as well as contrast enhanced CT and MR imaging.

Recognized causes include 3:

See also

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