Fig. 2From: Concurrent pulmonary arteriovenous malformation and pulmonary embolism causing stroke: a therapeutic dilemmaA Selective right lower lobe superior segmental pulmonary arteriography shows an acute-angled and feeding artery (arrowheads) and venous sac (asterisk) without an evidence of residual thromboembolism. B The angiography performed on the venous sac of PAVM using a microcatheter shows engorged draining vein (dashed arrows) that directly drained to the left atrium. C After the venous sac embolization using multiple coils, completion angiography shows no residual shunt flow of the PAVMBack to article page