Fig. 3From: The chief culprit of intractable hypoxemia: a case report of rare pulmonary arteriovenous fistula complicated with giant hemangiomaPulmonary artery CTA showing abnormal density shadow with size about 4.7Â cmĂ—2.4Â cm in the parahilar region of the left upper lobe tongue segment, considering pulmonary arteriovenous fistulaBack to article page