Renal artery injury (RAI) is an uncommon occurrence, occurring in 2.5-4% of traumatic renal injuries.
Management for renal artery injury is controversial - this is due to its relatively rare nature. There are three main options in RAI 1:
- nephrectomy" only in well patients with two kidneys
- vascular repair
- conservative monitoring: can be complicated by renovascular hypertension 2
In this axial series, note how the left kidney is hypodense compared to the contralateral side. Furthermore, there appears to be homogeneous fluid sitting posteriorly to the left kidney. This represents old blood.