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Case report
Republished: Flanking the fenestration: circumferential limb-to-limb stent-assisted coiling of a basilar artery fenestration aneurysm
  1. Joseph Morrison1,2,
  2. Matthew David Alexander2,
  3. Christopher F Dowd2,
  4. Daniel L Cooke2
  1. 1Department of Radiology, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
  2. 2Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
  1. Correspondence to Dr Joseph Morrison; jmorri23{at}


A man aged 61 years with a history of a ruptured basilar fenestration aneurysm underwent unassisted coiling in 1997 and repeat intervention for a recurrence at the aneurysm mouth in 2011. At repeat intervention, the decision was made to intentionally leave some filling at the base to preserve the parent vessels. Stent-assisted coil embolization, although technically feasible, was not pursued given the relative risks of the procedure. In 2017, the patient returned for repeat surveillance and further coil compaction was found at the aneurysm base. With the advent of more compliant woven stents deliverable through 0.017 microcatheters, stent-assisted coiling was possible. This case demonstrates hereto unseen agility afforded by novel low-profile stents allowing a circumferential approach to a basilar artery fenestration aneurysm and resultant limb-to-limb stent-assisted coiling. Techniques described here may be extended to more common anatomic variants that require stent-assisted coiling.

  • aneurysm
  • coil
  • stent
  • technique
  • artery

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  • Republished with permission from BMJ Case Reports Published 13 October 2017; doi:10.1136/bcr-2017-013252

  • Contributors JM authored and edited the manuscript. All authors participated in patient care, manuscript and image editing.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.