# An Unusual Location for Orbital Schwannoma: A Case Report

## TL;DR

A rare case of an orbital schwannoma in an unusual location was successfully treated with surgery.

## Contribution

This case report highlights an unusual location of an orbital schwannoma in the medial rectus muscle.

## Key findings

- The tumor was located in the right medial rectus muscle, an uncommon site for schwannomas.
- Surgical resection resolved the patient's symptoms of proptosis and diplopia.
- Pathological analysis confirmed the diagnosis of schwannoma.

## Abstract

Orbital schwannomas are benign and slow‐growing tumors that constitute 1% of all orbital tumors. They arise from the sensory branch of the ophthalmic division of the trigeminal nerve and are hence more often found in superior orbit regions. In this case report, we presented a 34‐year‐old healthy man with proptosis in the right eye and diplopia. Imaging revealed a large, well‐circumscribed mass in the right medial rectus. The patient underwent surgical resection of the tumor, and the patient's symptoms resolved 5 days after surgery. Pathological and immunohistochemical evaluations confirm the diagnosis of schwannoma.