A pararenal aneurysm is a rare type of an abdominal aortic aneurysm. T
he authors report 25 cases out of 429 abdominal aneurysms. The diagnos
is was based on a CT-scan and subsequent biplane arteriography. The mo
st common type was the dorsal proximal aortic dilatation, involving th
e origin of 1 or 2 renal arteries. A retroperitoneal approach was used
in 18 of the 25 patients. The most common complication was the retrop
eritoneal hemorraghie, necessitating reintervention. None of these pat
ients died or developped renal insufficiency despite a suprarenal clam
ping during the proximal reconstruction.