CASE REPORT
Os aneurismas fusiformes são lesões fusiformes que representam apenas 1% de todos os aneurismas intracranianos, que raramente podem sofrer trombose parcial ou completa de forma espontânea e podem levar a trombose da artéria principal, acidente vascular cerebral isquêmico e déficits neurológicos focais. O fenômeno por trás desse evento ainda é pouco relatado e seu mecanismo também é pouco compreendido. Apresentamos um caso incomum com trombose espontânea completa de um pequeno aneurisma fusiforme não roto na artéria cerebral posterior direita, apresentando-se como um ataque isquêmico transitório.
Fusiform aneurysms are spindle-shaped lesions that account for only 1% of all intracranial aneurysms, that rarely may undergo spontaneous partial or complete thrombosis and could lead to parent artery thrombosis, ischemic stroke, and focal neurological deficits. The phenomenon behind this event is still rarely reported, and its mechanism has also been poorly understood. We present an unusual case with complete spontaneous thrombosis of a small unruptured fusiform aneurysm at the right posterior cerebral artery, presenting with a transient ischemic attack.
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1 MD, MSc, Neurosurgeon, Department of Neurosurgery, Hospital de Força Aérea do Galeão, Rio de Janeiro, Department of Endovascular Neurosurgery, Hospital Santa Teresa, Petropolis, Brazil.
2 Medical student, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
3 MD, Department of Endovascular Neurosurgery, Hospital Santa Teresa, Petropolis, Brazil.
4 MD, Neurosurgeon, Department of Neurosurgery, Hospital de Força Aérea do Galeão, Rio de Janeiro, Department of Endovascular Neurosurgery, Hospital Santa Teresa, Petrópolis, Brazil.
Received Oct 28, 2022
Accepted Nov 16, 2022
