PMC2639571_01
Sagittal gray-scale ultrasound scan of both kidneys obtained before intervention shows numerous cystic space-occupying lesions with marked internal echogenic debris and thick septa representing the numerous infected cysts.
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F1
Further US investigation on the 12th day, showed numerous cystic space-occupying lesions with low level internal echoes, septations, and increased wall thickness of the cysts that representing infected cysts (Fig. 1).
Axial CT scan of both kidneys without contrast demonstrates the nephrostomy catheter which was in the right kidney for further irrigation and drainage of the remaining pyocysts.
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F2
Forty-eight hours later, the same procedure was repeated for the largest cyst (8 cm in diameter) of the right kidney (Fig. 2); however, the patient showed no improvement.
Sagittal gray-scale ultrasound scan of right kidney obtained after repeated irrigation and drainage demonstrates decreasing amount of internal echoes and septa in the cysts.
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F3
Repeated US showed decreasing amount of internal echoes and thick septa of the drained cysts (Fig. 3).