title: Transarterial embolization of a hepatic arteriovenous malformation in an infant using Onyx: a case report and review of the differential diagnosis imaging findings.
abstract: Hepatic arteriovenous malformations are rare congenital lesions associated with significant morbidity and mortality, most commonly from high output cardiac failure. Efficient diagnosis and treatment demands an interdisciplinary approach, and the interventional radiologist plays a pivotal role in both. Imaging is important for diagnostic accuracy and treatment planning, and transcatheter embolization has become an established primary therapy. We report the clinical and imaging findings of a rare hepatic arteriovenous malformation in an infant presenting with high-output cardiac failure and pulmonary artery hypertension that was successfully treated by transarterial embolization using Onyx.
authors.affiliation: Department of Radiology, Medical University of South Carolina, Charleston, SC USA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Bolus
authors.affiliation: Department of Radiology, Medical University of South Carolina, Charleston, SC USA.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Yamada
authors.affiliation: Department of Radiology, Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA USA.
authors.forename: Sama
authors.initials: S
authors.lastname: Alshora
authors.affiliation: Department of Radiology, Medical University of South Carolina, Charleston, SC USA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Hannegan
authors.affiliation: Department of Radiology, Medical University of South Carolina, Charleston, SC USA.
authors.forename: Bret
authors.initials: B
authors.lastname: Anderson
mesh_terms: D000792:Angiography; D001165:Arteriovenous Malformations / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D003937:Diagnosis, Differential; D004121:Dimethyl Sulfoxide / Q000627:therapeutic use*; D004338:Drug Combinations; D018618:Echocardiography, Doppler, Color; D004621:Embolization, Therapeutic / Q000379:methods*; D006499:Hepatic Artery / Q000000981:diagnostic imaging / Q000473:pathology; D006503:Hepatic Veins / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D008297:Male; D011145:Polyvinyls / Q000627:therapeutic use*; D013635:Tantalum / Q000627:therapeutic use*; D014057:Tomography, X-Ray Computed
chemical_list: D004338:Drug Combinations; C558446:Onyx 18; C000598428:Onyx 34; D011145:Polyvinyls; D013635:Tantalum; D004121:Dimethyl Sulfoxide
keywords: Arteriovenous malformation; Onyx; embolization; interventional radiology; liver; vascular malformation