Bilateral persistent hypoglossal arteries: MRI findings.
Persistence of foetal anastomoses between carotid and vertebrobasilar arteries is well recognised, but their bilateral presence is rare. We report a case of bilateral persistent hypoglossal arteries. Absence of bilateral vertebral arteries was incidentally noted on neck ultrasound examination. Subsequent MRI confirmed this and revealed persistent hypoglossal arteries that arose bilaterally from the cervical internal carotid artery, entered the cranium through the hypoglossal canal and joined the lower portion of the basilar artery.
Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan. h-takahashi@radiol.med.osaka-u.ac.jp
H
H
Takahashi
H
H
Tanaka
N
N
Fujita
N
N
Tomiyama
D000368:Aged; D001488:Basilar Artery / Q000002:abnormalities*; D002343:Carotid Artery, Internal / Q000002:abnormalities*; D000013:Congenital Abnormalities / Q000175:diagnosis; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D033162:Incidental Findings; D008279:Magnetic Resonance Imaging / Q000379:methods; D014711:Vertebral Artery / Q000002:abnormalities*