Traumatic aneurysm in the posterior fossa

Area of Science:

• Neurology
• Vascular Surgery
• Neurosurgery

Background:

• Traumatic aneurysms are uncommon vascular lesions resulting from injury.
• Peripheral intracranial aneurysms, particularly in the posterior fossa, are exceedingly rare.

Observation:

• A unique case of a traumatic false aneurysm involving a branch of the right posterior inferior cerebellar artery is presented.
• This lesion was identified in the posterior cranial fossa.

Findings:

• The case represents a traumatic false aneurysm of a peripheral intracranial vessel.
• Literature review identified only two previous reports of similar aneurysms in the posterior fossa.

Implications:

• This case expands the understanding of rare traumatic intracranial aneurysms.
• Highlights the importance of considering traumatic etiologies for peripheral intracranial aneurysms, even in rare locations.