title: Billowing Of Endologix Powerlink Stent Mimicking Endoleaks.
abstract: BACKGROUND
  Endoleaks remains one of the primary concerns of endovascular aortic aneurysm repair (EVAR) and is routinely followed with CT angiography (CTA). However, certain imaging findings can mimic endoleaks.
  
  
  METHODS
  A 65-year-old woman who had endovascular aortic repair (EVAR) of an abdominal aortic aneurysm with Endologix Powerlink system developed marked new circumferential cauliflower-like bulging of contrast-filled sacs at mid-stent-graft with enlargement of the excluded aneurysm at 3-year follow-up.
  
  
  CONCLUSIONS
  Considering the unique construct of the Powerlink stents, this is thought to represent aneurysmal degeneration of the outer fabric material from the metal struts and may potentially pressurize the excluded sac with risk for rupture.
authors.affiliation: Imaging Institute, Cleveland Clinic, Cleveland, USA.
authors.forename: Alex
authors.initials: A
authors.lastname: Wu
authors.affiliation: Imaging Institute, Cleveland Clinic, Cleveland, USA.
authors.forename: Karunakaravel
authors.initials: K
authors.lastname: Karuppasamy
authors.affiliation: Department of Radiology, Mayo Clinic, Jacksonville, USA.
authors.forename: Weiping
authors.initials: W
authors.lastname: Wang
keywords: Billowing; Endoleak; Endologix; Powerlink