Dementia and Neurocognitive Disorders  2017;16(4):128-131

doi:10.12779/dnd.2017.16.4.128

Posterior Type of Alzheimer's Dementia Presenting with Homonymous Hemianopsia.

YoonAh PARK 1 ; Kun Woo PARK ; Chan Nyeong LEE

Affiliations

+expand

Keywords

hemianopsia; Alzheimer's disease; posterior cortical atrophy

Country

Republic of Korea

Language

English

Abstract

BACKGROUND: Alzheimer's disease is a chronic neurodegenerative condition, mostly affecting the medial temporal lobe and associated neocortical structures. In this report, we present a rare clinical manifestation of this disease. CASE REPORT: A 61-year-old female with word finding difficulty and memory disturbances was diagnosed with Alzheimer's disease. Two years later, she complained of right homonymous hemianopia without optic ataxia, ocular apraxia, and simultagnosia. No findings other than parenchymal disease were apparent in magnetic resonance imaging and laboratory tests. CONCLUSIONS: In this case, in a patient initially diagnosed with Alzheimer's dementia with progressive disease, we found only homonymous hemianopia, without signs of Balint's syndrome or Gerstmann's syndrome. After careful investigation showing that Alzheimer's dementia with visual symptom was not associated with parenchymal disease, we concluded a case of atypical variant of Alzheimer's disease.