PMC3371747_01
(a) Enhanced computed tomography scan showing the right ureter (arrow) and the right internal pudendal artery (arrowhead). (b) Three-dimensional computed tomography showing the right ureter (arrow) and the right internal pudendal artery (arrowhead).
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fig1
Contrast-enhanced CT showed hematomas in the right renal pelvis and the ureter; however, there were no aneurysms or extravasations (Figures 1(a) and 1(b)).
An angiogram showing no extravasation or fistula. However, a very small pseudoaneurysm (arrow) was seen retrospectively.
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fig2
Angiography was performed, but no pseudoaneurysms were found, and the source of bleeding was not identified (Figure 2).
(a) A pseudoaneurysm (arrow) detected at the time of the second angiography. (b) Endovascular coils (arrow) inserted into the right internal pudendal artery.
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fig3
An immediate angiography was performed, which showed a fistula between the ureter and a pseudoaneurysm of the internal pudendal artery (Figure 3(a)). Coil embolization was performed (Figure 3(b)), which successfully controlled the bleeding.