Left Homonymous Hemianopia Mimicking Spatial Neglect in Right Middle Cerebral Artery Territory Infarction

Kim, Young Seo; Kim, Gang Chan; Cheong, Jin Sung

doi:2026.44.4.332

J Korean Neurol Assoc > Volume 44(4); 2026 > Article

Case Report

Journal of the Korean Neurological Association 2026;44(4): 332-335. doi: https://doi.org/10.17340/jkna.2026.0037

우측 중대뇌동맥 영역 뇌경색에서 편측무시양 증상으로 나타난 좌측 동측반맹

김영서^1,2,3, 김강찬¹, 정진성^1,2,3

¹원광대학교병원 신경과
²전북권역심뇌혈관질환센터
³원광대학교 의과대학 의과학연구소

Left Homonymous Hemianopia Mimicking Spatial Neglect in Right Middle Cerebral Artery Territory Infarction

Young Seo Kim MD^1,2,3, Gang Chan Kim MD¹, Jin Sung Cheong MD^1,2,3

¹Department of Neurology, Wonkwang University Hospital, Iksan, Korea
²Jeonbuk Regional Cardiocerebrovascular Disease Center, Wonkwang University Hospital, Iksan, Korea
³Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Korea

Corresponding Author: Jin Sung Cheong ,Tel: +82-63-859-1410, Fax: +82-63-842-7379, Email: karlkarl@wku.ac.kr

Received: May 18, 2026 Revised: June 30, 2026 Accepted: July 7, 2026 Published online: November 1, 2026

Abstract

Homonymous hemianopia, typically associated with posterior cerebral artery (PCA) infarction, can occur in middle cerebral artery (MCA) infarction involving the optic radiations. We report a 53-year-old man with right MCA infarction. After dysarthria and left-sided weakness improved, he developed gait deviation and neglect-like behavior. He was diagnosed with left homonymous hemianopia by visual field testing and automated perimetry and follow-up imaging showed no new PCA infarction. This case highlights the importance of visual field examination in MCA infarction.

Key Words: Hemianopia | Middle cerebral artery infarction | Perimetry