Gross Hematuria after kidney biopsy. A case report

Abstract

We describe the clinical case of a patient experiencing severe gross hematuria causing clotting in the renal pelvis, after undergoing a kidney biopsy.The ecocolordopper and CT angiography performed did not reveal the cause of hematuria.The kidney arteriography allowed the diagnosis, revealing an arteriovenous fistula responsible for bleeding together with a small false aneurysm in the lower pole of the biopsied kidney. Both lesions were successfully treated with superselective embolization with microcoils.
We discuss about the diagnostic and therapeutic approach of these rare post-biopsy complications briefly focusing on the technical aspects and on possible risks that the transcatheter embolotherapy may result.

Key Words: embolization, microcoils, arteriovenous fistula, pseudoaneurysm, renal biopsy

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