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Rare anatomical variations of persistent trigeminal artery in two patients with non-aneurysmal subarachnoid hemorrhage
  1. Edgar A Samaniego1,
  2. Guilherme Dabus1,
  3. Vincenzo Andreone2,
  4. Italo Linfante1
  1. 1Baptist Cardiac and Vascular Institute, Miami, Florida, USA
  2. 2Department of Neuroscience, Ospedale ‘Antonio Cardarelli’, Naples, Italy
  1. Correspondence to Dr E A Samaniego, Baptist Cardiac and Vascular Institute, 8900 N Kendall Drive, Miami 33176, Florida; edgarsama{at}gmail.com

Abstract

Carotid–basilar anastomoses are remnants of the fetal circulation and although rare, they may become symptomatic and should be recognized during cerebral angiography. Two patients are described with non-aneurysmal subarachnoid hemorrhage and persistent trigeminal arteries (PTA) found on cerebral angiography. In the first patient, the PTA ended in the anterior inferior cerebellar artery (AICA) and posterior inferior cerebellar artery. The second patient had a PTA terminating in the AICA and superior cerebellar artery. These rare anatomical PTA variants should be recognized on cerebral angiography.

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Footnotes

  • Competing interests None.

  • Patient consent Obtained.

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

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