# Optic Chiasm Glioma in an Older Adult Patient

## TL;DR

An older adult patient with progressive vision loss was diagnosed with an optic chiasm glioma after initial concerns suggested neuromyelitis optica.

## Contribution

This case highlights the importance of considering glioma in the differential diagnosis of optic chiasm lesions in adults.

## Key findings

- Initial symptoms suggested neuromyelitis optica, but imaging revealed contrast enhancement indicative of a neoplasm.
- Histopathological analysis confirmed the presence of an optic chiasm glioma.
- The patient was referred for chemotherapy following diagnosis.

## Abstract

We present a case of an adult patient experiencing progressive visual loss. An initial presentation was concerning for neuromyelitis optica with optic chiasm involvement. However, persistent contrast enhancement observed in follow-up brain and orbit images raised suspicion for optic tract malignant neoplasm. Histopathological evolution of optic nerve biopsy confirmed the diagnosis of an optic chiasm glioma. The patient was then referred to oncology for chemotherapy.