Immediate Angiographic Manifestations of Iatrogenic Renal Injury Due to Percutaneous Needle Biopsy

Immediate postbiopsy selective renal angiography was performed on 18 patients. The most common finding was filling of the needle track with opacified blood. Minimal to extensive perirenal puddling of contrast material was seen in 6 patients. Minimal arteriovenous communication, arterial occlusion, and nephrographic defects were also noted. Accurate placement of the biopsy needle in the cortical region is important in preventing major complications.