Persistent trigeminal artery: angio-tomography and angio-magnetic resonance finding.
The trigeminal artery (TA) is the most common embryonic carotid-vertebrobasilar anastomosis to persist into adulthood. It typically extends from the internal carotid artery to the basilar artery. Persistent primitive arteries are usually found incidentally, but are often associated with vascular malformation, cerebral aneurysm and, in case of TA, with trigeminal neuralgia. We present one patient with TA as a cause of trigeminal neuralgia and in other three as an incidental finding, on TC and MR angiograms.
Pereira
Lícia Pachêco
LP
Radiology Department, Fortaleza General Hospital, Fortaleza, CE, Brazil. licia_p@hotmail.com
Nepomuceno
Lara A M
LA
Coimbra
Pablo Picasso
PP
Oliveira Neto
Sabino Rodrigues de
SR
Natal
Marcelo Ricardo C
MR
D000369:Aged, 80 and over; D001163:Arteriovenous Anastomosis / Q000000981:diagnostic imaging*; D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D033162:Incidental Findings; D002538:Intracranial Arteriovenous Malformations / Q000150:complications; D018810:Magnetic Resonance Angiography; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014277:Trigeminal Neuralgia / Q000209:etiology*; D055815:Young Adult