# The Visualization of Intraneural Venous Compression in Trigeminal Neuralgia by Using Advanced Three-Dimensional Computer Graphics: An Illustrative Case Report

## TL;DR

This case report shows how 3D computer graphics helped visualize and treat a rare type of trigeminal neuralgia caused by venous compression.

## Contribution

The novel use of advanced 3D computer graphics to visualize and manage venous compression in trigeminal neuralgia is presented.

## Key findings

- 3D computer graphics enabled visualization of a vein compressing the trigeminal nerve not clearly seen on conventional MRI.
- Identifying a collateral drainage route allowed safe sacrifice of the vein, ensuring treatment success.
- Modern surgical simulation technology improved preoperative planning and risk mitigation.

## Abstract

Trigeminal neuralgia (TN) caused by venous compression presents challenges in surgical management, unlike the arterial type. Preoperative diagnostic certainty regarding venous etiology and anatomical relationships is crucial for surgical success. We discuss a case of TN caused by a vein passing through the nerve that was challenging to visualize on conventional MRI and was treated successfully by leveraging information from modern surgical simulation technology with 3D computer graphics. We recognized a potentially troublesome anatomical feature in advance and mitigated the risk by identifying a collateral drainage route for the causative vein, making it feasible to be sacrificed while ensuring treatment efficacy.