Rare Cause of Spontaneous Retroperitoneal Haemorrhage: Ruptured Pseudoaneursym of Capsular Branch of Renal Artery

Spontaneous retroperitoneal haemorrhage is a rare disease .It is an emergency for both surgeon and intervention radiologist. It is also called as Wunderlich syndrome and patient usually presents with lenk's triad. We reporting a rare cause of spontaneous retroperitoneal haemorrhage in 48 year old male patient, who presented with acute flank pain, flank mass on left side and hypovolemic shock. The cause of haemorrhage was diagnosed to be ruptured pseudoaneurysm of capsular branch of left renal artery on diagnostic subtraction angiography. Super-selective embolization of pseudo-aneurysm was done with polyvinyl alcohol particles.