Basal rupture of saccular aneurysm. A pathological case report

Area of Science:

• Neurology
• Pathology
• Vascular Biology

Background:

• Subarachnoid hemorrhage (SAH) is a critical neurological condition often caused by ruptured cerebral aneurysms.
• The Circle of Willis is a key arterial network at the base of the brain susceptible to aneurysm formation.

Observation:

• A postmortem examination of a subarachnoid hemorrhage case focused on the Circle of Willis arteries.
• The arteries were intentionally left undisturbed to preserve the anatomical context of the rupture.

Findings:

• Serial sectioning of frontal lobe tissue revealed a saccular aneurysm.
• The aneurysm was found to have ruptured at its base, deviating from the commonly observed dome rupture.
• Histological examination clearly depicted the hemostatic processes following the rupture.

Implications:

• This finding challenges the typical understanding of aneurysm rupture points.
• Understanding basal rupture mechanics is crucial for improving SAH diagnosis and treatment strategies.
• Detailed histology provides insights into the body's response to vascular injury in the brain.