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Fusiform intracranial aneurysms. Clinicopathologic features.

M T Shokunbi1, H V Vinters, J C Kaufmann

  • 1Department of Clinical Neurological Sciences, University Hospital, London, Ontario, Canada.

Surgical Neurology
|April 1, 1988
PubMed
Summary

Autopsy revealed seven fusiform aneurysms in five older adults, with the basilar trunk being the most common site. Rupture was frequent, indicating atherosclerosis is not the sole cause of these vascular lesions.

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Area of Science:

  • Neuropathology
  • Vascular Surgery
  • Forensic Medicine

Background:

  • Fusiform aneurysms are rare vascular lesions.
  • Understanding their pathogenesis is crucial for clinical management.

Purpose of the Study:

  • To investigate the clinicopathological features of fusiform aneurysms.
  • To explore the underlying mechanisms contributing to aneurysm formation and rupture.

Main Methods:

  • Retrospective autopsy study over 13 years.
  • Analysis of five patients with seven fusiform aneurysms.
  • Histopathological examination of aneurysm walls.

Main Results:

  • Seven fusiform aneurysms identified in five patients (ages 56-65).

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  • Basilar trunk was the most frequent location; four were giant aneurysms with thrombi.
  • Subarachnoid hemorrhage occurred in four patients; wall showed degeneration, attenuation, hemorrhage, and inflammation.

    • Conclusions:

    • Fusiform aneurysm rupture is not uncommon.
    • Atherosclerosis is a contributing factor, but other mechanisms are involved in pathogenesis.
    • These findings highlight the complex etiology of fusiform aneurysms.