Persistent trigeminal artery feeding a hemispheric branch of the posterior inferior cerebellar artery: a rare anatomic variant

G Perot; F Clarençon; F Di Maria; N Sourour; A Biondi; P Cornu; J Chiras

doi:10.1016/j.neurad.2011.02.006

Persistent trigeminal artery feeding a hemispheric branch of the posterior inferior cerebellar artery: a rare anatomic variant

J Neuroradiol. 2011 Oct;38(4):251-4. doi: 10.1016/j.neurad.2011.02.006. Epub 2011 Apr 13.

Authors

G Perot¹, F Clarençon, F Di Maria, N Sourour, A Biondi, P Cornu, J Chiras

Affiliation

¹ Department of radiology, Rouen university hospital, 1, rue de Germont, 76000 Rouen, France.

PMID: 21492937
DOI: 10.1016/j.neurad.2011.02.006

Abstract

Persistent trigeminal artery is a rare persistent carotid-basilar anastomosis that usually connect the infracavernous segment of the ICA with the basilar artery. Rarely, PTA may feed cerebellar artery. We describe an exceptional case of PTA terminating in postero-inferior cerebellar artery (PICA) hemispheric branch. Angiographic and CTA features are presented and hypotheses regarding developmental origin of this variation are discussed.

Publication types

Case Reports

MeSH terms

Carotid Artery, Internal / abnormalities*
Carotid Artery, Internal / diagnostic imaging
Cerebellum / blood supply*
Female
Humans
Middle Aged
Radiography
Vertebral Artery / abnormalities*
Vertebral Artery / diagnostic imaging