Spontaneous resolution of ruptured intracranial pial arteriovenous fistula following spinal surgery

Mark K. Lyons, Joseph M. Hoxworth, Jamal McClendon, Chandan X. Krishna, Naresh P. Patel

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Pial arteriovenous fistulae (AVFs) are rare vascular abnormalities that are distinct from arteriovenous malformations and dural AVFs. These vascular lesions have been linked with trauma, ischemic syndromes, venous thrombotic diseases, and intracranial surgical procedures. In this report we describe a case of an intracranial ruptured pial AVF immediately following uneventful spinal surgery in an elderly patient with subsequent spontaneous resolution. He was a previous heavy smoker with a 60-pack-year history and alcohol abuse. His examination was positive for morbid obesity and mild weakness of the anterior tibialis and gastrocnemius muscles bilaterally. He underwent uneventful spinal surgery, suffering a generalized seizure shortly after extubation. Imaging studies demonstrated acute subarachnoid hemorrhage and cerebral angiography identified a pial AVF. He was stabilized medically and follow-up angiography demonstrated spontaneous resolution of the pial AVF. This case highlights a rare vascular malformation with rupture following uneventful spinal surgery.

Original languageEnglish (US)
Pages (from-to)175-179
Number of pages5
JournalNeuroradiology Journal
Issue number2
StatePublished - Apr 1 2017


  • Pial arteriovenous fistula
  • spine surgery
  • subarachnoid hemorrhage

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology


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