PMC3921766_01
Longitudinal scan of the right kidney showing echogenic foci of air (arrow) inside the renal parenchyma. Note the 'dirty' shadow (black arrow).
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Ultrasound revealed multiple hyper echoic areas with dirty distal acoustic shadowing (gas) in all calyces and within the renal parenchyma of the mildly enlarged right kidney (RK; size of RK- 12.6 x 6.9 cm), no intrarenal or perinephric collection was seen and the pelvicalyceal system was compact (Fig. 1).
Non-contrast CT scan showed gas within the parenchyma of right kidney and small radiopaque shadow (calculus) in the midpole of left kidney.
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