Pulmonary arterio-venous fistula.
D001164:Arteriovenous Fistula / Q000209:etiology*; D002648:Child; D006801:Humans; D008297:Male; D011651:Pulmonary Artery; D011667:Pulmonary Veins; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000150:complications