Figure 2.

Extensive left subcapsular renal hematoma (black star) caused by spontaneous rupture of the renal parenchyma with evidence of active arterial bleeding (black arrow). The simple renal cyst on the left mesorenal level, diagnosed at the initial CT scan, appears intact (white arrow). In this patient, WS would not appear to be associated with an underlying kidney disorder (ie, spontaneous rupture of renal cyst). Therefore, systemic coagulopathy is probably the underlying pathophysiological mechanism of WS in this case. CT = computed tomography; WS = Wunderlich syndrome.