# Extensive Involvement of the Bilateral Trigeminal Nerve Branch as the Only Imaging Manifestation of IgG4‑Related Ophthalmic Disease

## TL;DR

A rare eye disease can show up only as thickened nerves in imaging scans.

## Contribution

This case highlights a rare imaging-only presentation of IgG4-related ophthalmic disease.

## Key findings

- IgG4-related ophthalmic disease can manifest solely as trigeminal nerve thickening.
- Imaging may be the only sign of the disease without other typical symptoms.

## Abstract

Teaching point: Immunoglobulin G4‑related ophthalmic disease (IgG4‑ROD) may present only as diffuse thickening of the orbital branches of the trigeminal nerve.