CASE REPORT

Ipsilateral Internal Carotid Agenesis and Ruptured Cerebral Aneurysm: an unusual association with therapeutic challenges

Agenesia Carotídea Interna Ipsilateral e Aneurisma Cerebral Roto: uma associação incomum com desafios terapêuticos

  • Eloísa Bittencurt Thomaz de Assis    Eloísa Bittencurt Thomaz de Assis
  • Pedro Neves Fortunato    Pedro Neves Fortunato
  • Samir Ahmad Jradi    Samir Ahmad Jradi
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Resumo

Aneurismas na artéria comunicante anterior são relativamente comuns e apresentam maior probabilidade de ruptura. Devido à presença de estruturas importantes próximas a essa artéria, o procedimento de clipagem e até mesmo a embolização do aneurisma tornamse arriscados e, portanto, uma abordagem cuidadosa e delicada deve ser adotada. Os sinais e sintomas mais comuns de aneurismas intracranianos não rotos incluem cefaleia, redução da acuidade visual, visão dupla e outras neuropatias dos nervos cranianos, geralmente atribuídas ao efeito de massa imposto pelo aneurisma nas estruturas neurais próximas. Nosso estudo relata o caso de um paciente que não possuía a artéria carótida comum e interna à direita e foi diagnosticado com aneurisma sacular da artéria comunicante anterior. Já foi discutido que essa formação rara aumenta a incidência de aneurismas intracranianos, e o objetivo do nosso estudo é apresentar essa ocorrência e também produzir uma revisão da literatura sobre o tema.

Palavras-chave

Carótida interna ipsilateral; Agenesia; Aneurisma cerebral roto; Terapêutica

Abstract

Aneurysms in the anterior communicating artery are relatively common and are more likely to rupture. Due to important structures close to this artery, the aneurysm clipping procedure and even embolization become risky, and therefore a careful and delicate approach must be taken. The most common presenting signs and symptoms of unruptured intracranial aneurysms include headache, reduced visual acuity, double vision, and other cranial nerve neuropathies that are generally attributed to the mass effect imposed by the aneurysm on nearby neural structures. Our study reports the case of a patient who did not have the common and internal carotid artery on the right side and was diagnosed with a saccular aneurysm of the anterior communicating artery. It has already been discussed that this rare formation increases the incidence of intracranial aneurysms, and the objective of Our study is to present this occurrence and also produce a literature review on this topic.

Keywords

Ipsilateral internal carotid; Agenesis; Ruptured cerebral aneurysm; Therapeutics

References

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Eloísa Bittencurt Thomaz de Assis: Conceptualization, Data curation, Formal analysis, Writing – review & editing. Pedro Neves Fortunato: Supervision, Visualization, Writing – review & editing. Samir Ahmad

Jradi: Supervision, Validation, Writing – review & editing.

PMid:31976332.

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8. Faluk M, De Jesus O. Saccular Aneurysm. Treasure Island, FL: StatPearls Publishing; 2024. Available from: http://www.ncbi.nlm.nih.gov/ books/NBK557867/. Accessed:19/03/2024.

9. Brzegowy P, Kucybała I, Krupa K, et al. Angiographic and clinical results of anterior communicating artery aneurysm endovascular treatment. Wideochir Inne Tech Malo Inwazyjne. 2019;14(3):451-60.

https://doi.org/10.5114/wiitm.2019.81406. PMid:31534577.

10. Chen J, Li M, Zhu X, et al. Anterior communicating artery aneurysms: anatomical considerations and microsurgical strategies. Front Neurol. 2020;11:1020. https://doi.org/10.3389/fneur.2020.01020. PMid:33013671.



1Department of Medicine, Baltic Federal University, Kaliningrad, Russia.

2Department of Neurosurgery, Hospital Doutor Mario Gatti Municipal, Campinas, Brazil.

3Department of Neurosurgery, Hospital Regional Sul São Paulo, São Paulo, Brazil.


 

Received Aug 19, 2025

Corrected Sep 7, 2025

Accepted Sep 25, 2025


JBNC  Brazilian Journal of Neurosurgery

JBNC
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