Autologous blood clot embolization into a bleeding renal artery pseudoaneurysm.

A young girl suffering from anuria due to periarteritis nodosa developed severe bleeding after left kidney needle biopsy. Angiography revealed, in addition to changes in the renal vascular tree, two saccular pseudoaneurysms in the course of a lobar artery in the left kidney. These caused life-threatening bleeding from the urinary tract. An autologous blood clot was injected into the bleeding artery by selective catherization, which resulted in cessation of bleeding for a period of 15 h, and thus permitted the performance of surgical intervention - nephrectomy - under more suitable conditions.