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Figure 26.   Renal laceration in a 25-year-old man who had sustained a stab wound to the right posterolateral aspect of the abdomen. Contrast-enhanced nephrographic-phase helical CT scan reveals laceration of the anterolateral aspect of the right kidney (curved arrow) with a blood clot in a right extrarenal pelvis (B). Note the small hepatic laceration (straight black arrow) and minimal hemoperitoneum (H). The stab wound is seen in the abdominal wall (white arrow). An extrarenal pelvis is also present on the left side.