Abstract

A 62-year-old woman with a history of metastatic breast cancer and known meningioma presented with unilateral vision loss associated with anisocoria and an afferent pupillary defect. On magnetic resonance imaging we found the cause to be optic nerve compression by a right frontal meningioma. Monocular vision-loss etiologies are anatomically localized to structures anterior to the optic chiasm. This case serves as a reminder that cerebral structures in this location must not be forgotten in the differential.

Highlights

  • A 62-year-old woman with a history of metastatic breast cancer and known meningioma presented with unilateral vision loss associated with anisocoria and an afferent pupillary defect

  • On magnetic resonance imaging we found the cause to be optic nerve compression by a right frontal meningioma

  • CASE PRESENTATION Our patient had a past medical history significant for right frontal lobe meningioma and metastatic breast cancer who awoke from sleep approximately 20 hours prior to presentation with acute, painless, right eye vision loss and enlarged right pupil

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Summary

Introduction

A 62-year-old woman with a history of metastatic breast cancer and known meningioma presented with unilateral vision loss associated with anisocoria and an afferent pupillary defect. Journal Clinical Practice and Cases in Emergency Medicine, 3(4) David Lane, PA-C, MHS Kaila Pomeranz, DO Shannon Findlay, MD Daniel Miller, MD University of Iowa Hospitals and Clinics, Department of Emergency Medicine, Iowa City, Iowa

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