PMC4756556_01
Stent has the upper coil in the inferior vena cava (single arrow) and lower coil in the bladder through the Boari flap (double arrow)
IJU-32-71-g001.jpg
PMC4756556_01_IJU-32-71-g001.jpg
F1
To the surprise of the treating urologist, the CT showed that the stent had traversed through the Boari flap and entered the IVC, with the upper coil of the stent in the supra-renal IVC [Figure 1].
The right lower ureter is in contuinity with the normal upper ureter while the Boari flap is not connected to the upper ureter. Stent exits through the Boari flap and has upper coil in the inferior vena cava
IJU-32-71-g002.jpg
PMC4756556_01_IJU-32-71-g002.jpg
F2
Further, the normal upper ureter was not connected to the Boari flap but was in continuation with the lower ureter [Figure 2].