# Dolichoectasia of Anterior and Posterior Circulation With Thrombosed Saccular Aneurysm of Vertebral Artery Presenting as Obstructive Hydrocephalus: A Case Report

## TL;DR

A rare case of brain blood vessel abnormalities and a clot-filled aneurysm caused fluid buildup in the brain, diagnosed through imaging.

## Contribution

Reports a rare case of VBD with thrombosed aneurysm presenting as hydrocephalus, emphasizing diagnostic and management considerations.

## Key findings

- VBD with thrombosed saccular aneurysm can present as obstructive hydrocephalus.
- CT imaging and angiography are crucial for diagnosing such complex vascular abnormalities.

## Abstract

Vertebrobasilar dolichoectasia (VBD) is characterized by vascular elongation, widening, and tortuosity of cerebral vasculature. There are only a few reported cases of VBD as a cause of hydrocephalus. Here, we report a case in a 55‐year‐old male who presented with sudden vomiting for a day and worsening of headache for two weeks. He was diagnosed with CT imaging with angiographic findings: thrombosed saccular aneurysm of the vertebral artery along with dolichoectasia of the anterior and posterior circulation.

Vertebrobasilar dolichoectasia (VBD) causing hydrocephalus with thrombosed saccular aneurysm is one of the few reported case reports. VBD's management is to control HTN to avoid hemorrhage and requires cautious use of anticoagulation in management. Clinical suspicion with CT imaging and angiography can help in making a precise diagnosis.