Right kidney malrotation
Young boy presenting with features of right pyeronephritis (right loin pain, fevers. Urine cultures were negative. a right renal mass was suspected on initial ultrasound (not shown).
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The study demonstrated a malrotated right kidney, which is positioned with the hilum in the anteolateral position. This is seen in both the portal venous and delayed phases,
This study demonstrated an example of renal malrotation, which is a normal variant. Poor drainage of the collecting system (because of the position of the renal pelvis, can predispose the kidney to infection (due to urinary stasis) and stone formation.