title: Pseudoaneurysm and renal arteriovenous fistula after nephrectomy: two cases treated by transcatheter coil embolization.
abstract: Pseudoaneurysms and arteriovenous fistulas of renal arteries are rare clinical lesions. Invasive renal procedures may lead to pseudoaneurysm or arteriovenous fistulas (AVFs). We report two pseudoaneurysms and arteriovenous fistula cases that were treated by transcatheter embolization with metallic coils. The first case is left main renal artery pseudoaneurysm after nephrectomy in a patient with a solid renal tumor. The second case is right main renal artery AVF with giant pseudoaneurysm after both gunshot injury and nephrectomy. On the basis of color Doppler sonography and computed tomography (CT) findings, cases were diagnosed as pseudoaneurysm after nefrectomy. Contrast-enhanced CT scans showed a hyperdense area within the hematoma consistent with pseudoaneurysm. Endovascular treatment with coil embolization succeeds to total occlusion in renal artery pseudoaneurysm. Delayed hemorrhage related to postnephrectomy may be life-threatening conditions because of diagnostic difficulties. AVF and pseudoaneurysm can be treated safely and successfully by transcatheter arterial embolization.
authors.affiliation: Department of Radiology, Faculty of Medicine, Firat University, 23119 Elazig, Turkey. bozgeyik4@hotmail.com
authors.forename: Zulkif
authors.initials: Z
authors.lastname: Bozgeyik
authors.forename: Huseyin
authors.initials: H
authors.lastname: Ozdemir
authors.forename: Irfan
authors.initials: I
authors.lastname: Orhan
authors.forename: Mutlu
authors.initials: M
authors.lastname: Cihangiroglu
authors.forename: Ziya
authors.initials: Z
authors.lastname: Cetinkaya
mesh_terms: D000328:Adult; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000009:adverse effects*; D012077:Renal Artery / Q000000981:diagnostic imaging; D012082:Renal Veins; D014057:Tomography, X-Ray Computed