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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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The Infundibulum-Aneurysm Conundrum: A Longitudinal Single-Center Analysis.

Sammy Allaw1, Abhinav Srinath1, Dominic M Montas1

  • 1From the Department of Neurological Surgery (S.A., A.S., D.M.M., F.H., R.A., A.B., T.K., B.Y., I.A.A., S.P.P.) and Department of Radiology (M.C.H., M.M.), University of Chicago Pritzker School of Medicine, Chicago, IL, USA; Department of Radiology (M.M.M.), University of Washington School of Medicine, Seattle Children's, Seattle, WA, USA.

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Summary
This summary is machine-generated.

Intracranial infundibula and uncertain "aneurysm vs infundibulum" lesions showed stability over medium-term follow-up. Diagnostic ambiguity arises from interpretation variability, not inherent risk, suggesting improved reporting can reduce surveillance.

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Area of Science:

  • Neuroradiology
  • Cerebrovascular imaging
  • Medical diagnostics

Background:

  • Intracranial infundibula are common vascular findings.
  • Distinguishing infundibula from small aneurysms can be challenging.
  • Variability in diagnostic labeling impacts patient management.

Purpose of the Study:

  • To characterize the natural history of intracranial infundibula.
  • To evaluate diagnostic variability in lesions labeled "aneurysm vs infundibulum".
  • To identify predictors of diagnostic ambiguity.

Main Methods:

  • Retrospective analysis of 665 intracranial outpouchings (CTA, MRA, DSA).
  • Classification into unequivocal infundibula (n=321) and "aneurysm vs infundibulum" conundrums (n=344).
  • Review of follow-up imaging for stability and reassessment of selected cases.

Main Results:

  • No complications or morphological changes observed in either group over medium-term follow-up.
  • Conundrums were more likely to undergo follow-up imaging (p<0.001).
  • Non-Pcomm location and comorbid aneurysms predicted conundrum labeling; reassessment showed high concordance with DSA.

Conclusions:

  • Both infundibula and conundrums demonstrated stability, suggesting low biological risk.
  • Diagnostic uncertainty is primarily due to interpretive variability.
  • Structured reporting and location-based heuristics can minimize unnecessary surveillance.