PMC2934585_01
Coronal CT image showing bilateral perinephric collections with otherwise normal kidneys
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A subsequent CT scan (Siemen's sensation 64 slice CT) showed bilateral perinephric fluid collection of attenuation 5-10 HU [Figure 1].
Axial CT scan showing fluid attenuation perinephric collections
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Delayed scans failed to reveal contrast extravazation into perinephric space or any increase in attenuation of fluid in this space [Figure 2], thus ruling out any communication with pelvicalyceal system.