title: Diffuse type pulmonary arteriovenous malformations: report of one case.
abstract: Pulmonary arteriovenous malformations are direct communications between pulmonary arteries and veins via a tortuous vascular space. They can cause severe pulmonary and neurologic complications. Most PAVMs are located in the lower lobes and can be seen on radiography or angiography. However, a few patients with PAVMs have a more severe and diffuse pattern of disease. These patients generally present with more profound cyanosis and a poorer prognosis. The widespread distribution and small size of these lesions make both diagnosis and management very difficult. We report a 12-year-old patient with diffuse bilateral PAVMs confirmed by contrast echocardiography and technetium-labeled macroaggregated albumin perfusion scan.
authors.affiliation: Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan.
authors.forename: Chang-Hsien
authors.initials: CH
authors.lastname: Yu
authors.forename: Ming-Ren
authors.initials: MR
authors.lastname: Chen
authors.forename: Shuan-Pei
authors.initials: SP
authors.lastname: Lin
authors.forename: Bing-Fu
authors.initials: BF
authors.lastname: Shih
mesh_terms: D001165:Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D002648:Child; D003490:Cyanosis / Q000175:diagnosis / Q000209:etiology; D004844:Epistaxis / Q000175:diagnosis / Q000209:etiology; D005260:Female; D006801:Humans; D011651:Pulmonary Artery / Q000002:abnormalities*; D011667:Pulmonary Veins / Q000002:abnormalities*