Emergency #12 – Flashcard

31-year-old male:
* With flank pain
* Increased inflammatory parameters
* Decreased kidney function

Why is the right kidney less dense than the left?

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Obstructive kidney stone in the right proximal ureter (arrow) with secondary hydronephrosis

The increased pressure in the collecting system slows the ultrafiltration of urine and causes a slower enhancement of the right kidney in comparison with the left kidney, reflecting the impaired kidney function