title: Progressive growth of a pelvic collection five years after endovascular aneurysm repair: an atypical presentation of an asymptomatic contained rupture.
abstract: We report a case of an unusual and late presentation of an asymptomatic contained rupture after modular stent-graft implantation to treat an aortobiiliac aneurysm. Follow-up computed tomography (CT) scans 4 and 5 years after endovascular aneurysm repair showed a homogeneous, nonenhancing, but clearly growing, pelvic collection. CT-guided drainage of the collection was performed, and cultures of the evacuated brown fluid were negative for any infection. Control CT scan after drainage showed a complete collapse of both the collection and the previously excluded iliac aneurysms. A direct communication between the sterile pelvic collection and the excluded iliac aneurysm was suggested on this CT imaging and confirmed afterwards by surgery. From these imaging and surgical findings, this pelvic collection can be considered as an atypical presentation of an asymptomatic contained rupture of the excluded aneurysm.
authors.affiliation: Department of Radiology, University Hospitals Gasthuisberg, Leuven, Belgium.
authors.forename: Olivier
authors.initials: O
authors.lastname: Bladt
authors.forename: Geert
authors.initials: G
authors.lastname: Maleux
authors.forename: Sam
authors.initials: S
authors.lastname: Heye
authors.forename: Dirk
authors.initials: D
authors.lastname: Vanbeckevoort
authors.forename: André
authors.initials: A
authors.lastname: Nevelsteen
mesh_terms: D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D018450:Disease Progression; D006801:Humans; D017543:Iliac Aneurysm / Q000601:surgery*; D007083:Iliac Artery / Q000000981:diagnostic imaging; D008297:Male; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D012422:Rupture, Spontaneous; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000000981:diagnostic imaging