Figure 4From: Pulmonary arteriovenous malformations presenting as difficult-to-control asthma: a case report A. Arteriovenous malformation of the right pulmonary artery segmental branch in the upper lobe with two feeding arteries. B. Status post one arteriovenous malformation (AVM) feeding artery embolization of the right upper lobe. C. Status post second AVM feeding artery embolization in the right upper lobe.Back to article page