PMC8741385_01
Oral and intravenous contrast-enhanced abdominal CT images. The right nephrostomy tube was located in the second part of the duodenum, and there was no leakage of contrast substance to the retroperitoneal site.
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fig1
In the CECT scan, the contrast agent did not leak into the peritoneum from the duodenal injury area (Figure 1).
(a) Nephrostomy catheter located in the part of duodenum. (b) During removal of the nephrostomy tube, oral contrast was given, and there was no sign of leakage to the retroperitoneal area.
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fig2
On the same day, the tube was retracted from the duodenal lumen to the retroperitoneal area near by the duodenal wall injury under direct endoscopic visualization in an attempt to avoid the potential retroperitoneal injury from possible leakage (Figure 2(a)). During removal of the duodenal nephrostomy tube, oral contrast was given, and no signs of leakage to the retroperitoneal area were detected on fluoroscopy (Figure 2(b)).