title: MR angiographic diagnosis of recanalization in a thrombosed pulmonary arteriovenous malformation.
abstract: Pulmonary arteriovenous malformation (PAVM) results from an anomalous communication between a pulmonary artery and vein and may lead to life-threatening hemoptysis. Pulmonary angiography is the standard diagnostic technique but may be falsely negative in the unusual instance of a thrombosed PAVM. We report a patient with a thrombosed PAVM in which the initial pulmonary angiogram incorrectly suggested pulmonary embolism. A subsequent magnetic resonance (MR) angiogram demonstrated recanalization of the PAVM, thus establishing the true nature of the lesion and leading to appropriate intervention.
authors.affiliation: Department of Radiology, University of Maryland Medical Center, Baltimore 21201.
authors.forename: C S
authors.initials: CS
authors.lastname: White
authors.forename: P A
authors.initials: PA
authors.lastname: Templeton
authors.forename: S O
authors.initials: SO
authors.lastname: Pais
authors.forename: J
authors.initials: J
authors.lastname: Clouston
mesh_terms: D000368:Aged; D000792:Angiography; D001165:Arteriovenous Malformations / Q000175:diagnosis*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011651:Pulmonary Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011655:Pulmonary Embolism / Q000175:diagnosis; D011667:Pulmonary Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging; D013927:Thrombosis / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed