CASE REPORT

Complete Spontaneous Thrombosis in Unruptured Non-Giant Fusiform Intracranial Aneurysm Presenting with Transient Ischemic Attack. Case Report

Trombose Espontânea Completa em Aneurisma Intracraniano Fusiforme Não Roto Não Gigante Apresentando-se com Ataque Isquêmico Transitório

  • Dan Zimelewicz Oberman (1)
  • Sávio Batista (2)
  • Othavio Lopes (3)
  • Luiz Felipe Ribeiro (3)
  • Vinicius Bessa Rodrigues (3)
  • Diogo Gonçalves Freitas (3)
  • José Alberto Almeida Filho (3)
  • Orlando Teixeira Maia Junior (4)
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Resumo

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.

Palavras-chave

Aneurismas fusiformes; Trombose espontânea; Aneurismas trombosados; Pequenos aneurismas fusiformes

Abstract

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.

Keywords

Fusiform aneurysms; Spontaneous thrombosis; Thrombosed aneurysms; Small fusiform aneurysms

References

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2. Das KK, Singh G, Pandey S, Bhaisora KS, Jaiswal A, Behari S. Completely thrombosed giant intracranial aneurysm with spontaneous thrombosis of the parent artery: is it nature’s divine intervention and a self-cure? World Neurosurg. 2018;118:132-8. http://dx.doi.org/10.1016/j.wneu.2018.07.072. PMid:30026148.

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8. Przelomski MM, Fisher M, Davidson RI, Jones HR, Marcus EM. Unruptured intracranial aneurysm and transient focal cerebral ischemia: a follow-up study. Neurology. 1986;36(4):584-7. http://dx.doi.org/10.1212/WNL.36.4.584. PMid:3960339.


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

JBNC  Brazilian Journal of Neurosurgery

  •   ISSN (print version): 0103-5118
  •   e-ISSN (online version): 2446-6786

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