title: Complete obstruction of right proximal pulmonary artery: a case report.
abstract: A fifty-five-year-old woman had worried about dyspnea for three years. A chest x-ray appeared normal except for hypovascularity of the upper lung field. On angiograms, a wedge-shaped obstruction was observed at the left proximal pulmonary artery, and well-developed collateral circulation from the right thoracic artery to the internal costal arteries was observed. On the exercise test, exertional dyspnea developed with tachycardia and a decreased saturation of arterial oxygen.
authors.affiliation: Division of Cardiovascular Section, Hamanomachi General Hospital, Fukuoka, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Meno
authors.forename: H
authors.initials: H
authors.lastname: Higashi
authors.forename: N
authors.initials: N
authors.lastname: Hamanaka
mesh_terms: D001157:Arterial Occlusive Diseases / Q000150:complications / Q000000981:diagnostic imaging; D003097:Collateral Circulation; D004417:Dyspnea / Q000209:etiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011859:Radiography