Persistent primitive trigeminal artery aneurysm evaluated by MR imaging and angiography.
The primitive trigeminal artery is the most common of the persistent carotid-basilar anastomoses with an angiographic incidence of 0.6%. Fifteen cases of aneurysms of a persistent primitive trigeminal artery have been reported in the literature. A 16th patient is presented in whom an incidental trigeminal artery aneurysm and a thrombosed aneurysm of the vertebrobasilar system are evaluated by magnetic resonance imaging and angiography.
D000328:Adult; D000783:Aneurysm / Q000151:congenital / Q000000981:diagnostic imaging*; D001159:Arterio-Arterial Fistula / Q000151:congenital* / Q000000981:diagnostic imaging; D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011859:Radiography