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Grayscale (above) and color Doppler (below) ultrasound images of both kidneys performed on a GE LogicQ E9. These show maintained size and cortical thickness, but increased echogenicity with loss of corticomedullary differentiation and globally decreased color Doppler flow to the parenchyma. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
