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Rev. bras. neurol ; 56(4): 35-38, out.-dez. 2020. ilus
Article in Portuguese | LILACS | ID: biblio-1140817

ABSTRACT

A persistência e a falha da involução das comunicações embrionárias entre a circulação cerebral anterior e posterior contribuem para anomalias vasculares em adultos. Esta variação é comumente detectada de forma incidental, causando sintomas muito raramente. Sua proximidade com os nervos oculomotor, troclear e abducente podem levar a paresia muscular ocular. Em alguns casos pode causar tinnitus pulsátil e ao espasmo de hemiface. Muitos casos de artéria trigeminal foram relatados como associados a aneurismas intracranianos.


The persistence and failure of the involution of embryonic communications between the anterior and posterior cerebral circulation contribute to vascular anomalies in adults. This variation is commonly detected incidentally, rarely causing symptoms. Its proximity to the oculomotor, trochlear, and abducent nerves can lead to ocular muscle paresis. Sometimes it can cause pulsatile tinnitus and hemiface spasm. Many cases of trigeminal artery have been reported to be associated with intracranial aneurysms.


Subject(s)
Humans , Male , Adult , Subarachnoid Hemorrhage/surgery , Subarachnoid Hemorrhage/diagnostic imaging , Carotid Arteries/abnormalities , Intracranial Aneurysm/surgery , Intracranial Aneurysm/diagnostic imaging , Tomography, X-Ray Computed , Treatment Outcome , Vascular Malformations , Computed Tomography Angiography
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