PMC4996562_01
CT scan demonstrating hydroureteronephrosis secondary to herniation of the right ureter into the greater sciatic foramen. (a) Shows hydronephrotic renal pelvis and collecting system and (b, c) demonstrate the dilated ureter within the greater sciatic foramen (marked by arrow).
fig-1.jpg
PMC4996562_01_fig-1.jpg
f1
Axial and coronal CT images are shown in Figure 1, demonstrating hydronephrosis (Fig. 1a), and a dilated ureter herniated through the greater sciatic foramen marked with a white arrow (Fig. 1b, c).
Retrograde pyelogram demonstrating dilation of the ureter proximal to the area of herniation (a) and guidewire bypassing the obstruction and passed into the proximal ureter (b).
fig-2.jpg
PMC4996562_01_fig-2.jpg
f2
Retrograde pyelography demonstrating the position of the USH and proximal hydroureteronephrosis is shown in Figure 2a, and placement of a guidewire is shown in Figure 2b.
Plain abdominal radiograph demonstrating a right ureteral stent in proper position and a straightened ureter.
fig-3.jpg
PMC4996562_01_fig-3.jpg
f3
Figure 3 is a plain abdominal radiograph, which demonstrates that ureteral stent placement straightened the ureter and likely has moved the ureter into a more typical position medial to the sciatic foramen.