Fig. 6.

Progressive arterial hypertension in 43-year-old patient one year after percutaneous renal allograft biopsy.

A. Selective arterial angiogram: there is large arteriovenous fistula in upper-pole segmental branch of transplanted renal artery and pseudoaneurysm (black arrow) with marked arteriovenous shunting (arrowheads) and early venous filling (white arrow). Note absence of nephrogram.

B. Control angiogram after selective embolization of afferent artery with 0.035" coils: complete occlusion of pedicular aneurysm and fistula, and improvement in nephrogram.

C. Post-embolization angiogram (parenchymal phase): renal infarction is seen in less than 10% of renal parenchyma (arrows).