Duplex renal collecting system

Clinical presentation

Health check up incidental pick up in a 35 year old lady.


This slideshow requires JavaScript.

Findings and Discussion

Duplex collecting system is a common developmental variant seen most often in children, but incidentally in adults. They need to be documented due to their association with vesicuoureteric reflux or ureteroceles. The easiest clue is the disruption o the renal sinus fat in the mid pole with a clear continuous intervening cortex in between.


Read more

  1. Radiopaedia – duplex collecting system
  2. Berrocal, Teresa, et al. “Anomalies of the distal ureter, bladder, and urethra in children: embryologic, radiologic, and pathologic features 1.” Radiographics 22.5 (2002): 1139-1164.