# Intramuscular orbital schwannoma: case report and review of the literature

## TL;DR

This paper reports a rare case of an orbital schwannoma in an 8-year-old boy, found within the inferior rectus muscle.

## Contribution

The novelty lies in the rare location of the schwannoma within the inferior rectus muscle in a pediatric patient.

## Key findings

- An 8-year-old boy presented with proptosis and diplopia due to an orbital schwannoma.
- The tumor was located within the inferior rectus muscle, a rare anatomical site for schwannomas.
- Imaging confirmed the characteristic features of an orbital schwannoma.

## Abstract

Orbital schwannomas are benign tumors that arise from Schwann cells in the peripheral nerves in the orbit. They typically present after the second decade of life given their slow growth and rarely before then. Diagnosis is based on clinical course and specific imaging modalities; however, the definitive diagnosis is by lesion biopsy. Surgical removal is typically curative. Herein we present the case of an 8-year-old boy with proptosis and diplopia where he exhibited the clinical findings of an orbital mass, however, the characteristic picture of orbital schwannoma was observed on imaging yet found within the inferior rectus muscle, a rare finding indeed.