Bilateral duplex kidney
hydronephrosis on both sides on an ultrasound examination
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Spot film taken during an IVP shows bilateral duplex kidneys.
On the left side the ureters have fused at the level of L3 vertebra
On the right side both ureters have opened into the bladder.
Bilateral duplex kidneys. Bifid ureter on the left side. Hence a partial duplication.
If seen carefully, on the right side, the ureter which is more medial is belongs to the superior pole moiety. This is accordance with Weigert-Meyer law.