title: Arteriovenous malformation of the bronchial artery showing endobronchial protrusion.
abstract: The bronchoscopic findings of arteriovenous malformation of the bronchial artery are compared with findings on angiography and pathology. A non-pulsatile protrusion with engorged vessels on its glossy and uneven surface was seen at the distal portion of the right anterior segmental bronchus. A bronchial angiogram demonstrated that the protrusion corresponded to the hypervascular area of convoluted vessels. Histologically, a glossy, uneven surface and engorged vessels represented normal mucosa overlaying an extramuscular tortuous artery and proliferation of submucosal tiny vessels, respectively. These bronchoscopic findings were important clues for diagnosis.
authors.affiliation: Second Department of Internal Medicine, Nagasaki University School of Medicine.
authors.forename: H
authors.initials: H
authors.lastname: Soda
authors.forename: M
authors.initials: M
authors.lastname: Oka
authors.forename: S
authors.initials: S
authors.lastname: Kohno
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: H
authors.initials: H
authors.lastname: Takatani
authors.forename: K
authors.initials: K
authors.lastname: Hara
mesh_terms: D001165:Arteriovenous Malformations / Q000473:pathology*; D001980:Bronchi / Q000473:pathology*; D001981:Bronchial Arteries / Q000002:abnormalities*; D001995:Bronchography; D001999:Bronchoscopy; D006469:Hemoptysis / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged