Horseshoe kidney (on IVU)
Right flank pain. Ultrasound was unremarkable, however a horseshoe anomaly detected.
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- both kidneys appear rotated with bilateral pelvicalyceal systems seen more end-on
- both lower poles are directed medially towards the spine
- normally functioning bilateral kidneys
Case of horseshoe kidney
Most common renal fusion anomaly.
More common in males.
IVU is a useful method for diagnosis, however the isthmus may not be well visualised ; a diagnosis can be made on the basis of secondary sign.
CT is more definitive and the level of fusion can also be determined.