Case Report
1 MD, Santa Mônica Hospital, Aparecida de Goiânia, GO, Brazil
2 Medical Sciences Course, Health Sciences School, Faculdade Ceres (FACERES), São José do Rio Preto, SP, Brazil
3 MD, Neurosurgeon, Member of the Brazilian Society of Neurosurgery (SBN), Santa Monica Hospital, Aparecida de Goiânia – GO, Brazil
4 MD, PhD in Neurosurgery, Neurosurgeon, Member of the Brazilian Society of Neurosurgery (SBN), Head of the Neurosurgery Medical Residency Service, Santa Monica Hospital, Aparecida de Goiânia – GO, Brazil
5 MD, Resident in Neurosurgery at Santa Mônica Hospital, Aparecida de Goiânia, GO, Brazil
Address correspondence to:
Pedro Nogarotto Cembraneli
Santa Mônica Hospital, Chácara Aurora, BR-153, km 8,5 Vila Sul, Aparecida de Goiânia, GO,
Brazil
Message to Corresponding Author
Article ID: 101182Z01PC2020
Introduction: Infundibular dilations are generally considered normal anatomical variants devoid of pathogenic significance. However, some of them change in time and show certain characteristics similar to saccular aneurysms.
Case Report: A 40-year-old male patient was hospitalized due to subarachnoid hemorrhage, resulting from the rupture of an aneurysm at the level of the anterior communicating artery. Additionally, an infundibular dilation of 6 mm in diameter was detected at the level of the right posterior communicating artery. The patient underwent an open surgery, using the pterional craniotomy approach to the right. The aneurysm of the anterior communicating artery was clipped with some difficulty because previous hemorrhage and hematoma were covering the aneurysmal neck. A mini clip was used to laterally decrease the infundibular dilation. Upon releasing the clip, we evidenced not an infundibulum, but a typical aneurysm, with the posterior communicating artery well attached to its wall, which was released and exposed at the time of clipping.
Conclusion: Infundibular dilation is a potential source of bleeding, but it rarely ruptures and is little valued by radiologists and neurosurgeons. The care inherent in the discovery of an infundibular aneurysm, even if it is insidious, must be the same as that applied to classical types of aneurysm. Moreover, the therapeutic approach should be chosen when the infundibular aneurysm is equal to or greater than 4 mm in diameter.
Keywords: Aneurysm, Angiographic findings, Angiography, Infundibular dilation
Pedro Nogarotto Cembraneli - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Italo Nogarotto Cembraneli - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Renata Brasileiro de Faria Cavalcante - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Volmer Fernandes Valente Junior - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
José Edison da Silva Cavalcante - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Rherold Santana - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Julia Brasileiro de Faria Cavalcante - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Guarantor of SubmissionThe corresponding author is the guarantor of submission.
Source of SupportNone
Consent StatementWritten informed consent was obtained from the patient for publication of this article.
Data AvailabilityAll relevant data are within the paper and its Supporting Information files.
Conflict of InterestAuthors declare no conflict of interest.
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