Angiogram showing pulmonary arteriovenous malformation (AVM)

Magnified view of the left lower lung field from a digital subtraction angiogram in a patient with PAVM and HHT. The angiography catheter (c) is seen entering the feeding artery at the upper left corner. The angiogram shows a single feeding artery (a), which bifurcates to supply the two sacs of the bilobed PAVM. The draining vein (v) is seen as a faint vessel inferior to the feeding artery.