Chikako Nito
Japan
Case Report
Lewy Body Dementia as an Underlying Etiology for Posterior Cortical Atrophy
Initially Presented with Visual Agnosia and Alexia: A Case Report
Author(s): Akiko Ishiwata, Chikako Nito and Kazumi KimuraAkiko Ishiwata, Chikako Nito and Kazumi Kimura
Posterior cortical atrophy (PCA) is a neurodegenerative disorder with cerebral atrophy in the parietal, occipital, or
occipitotemporal cortices, and is characterized by visuospatial and visuoperceptual impairments. The majority of the
disorder is compatible pathologically with Alzheimer’s disease (AD). However, many patients show no memory loss
until late stages of the disease. We encountered a case where a combination of several imaging modalities, in
conjunction with symptoms and neuropsychological exams, led not only to a diagnosis of PCA but also identified its
underlying etiology. A 62-year-old Japanese man presented to ophthalmology with visual impairment and without
abnormalities in his visual acuity or visual fields. Alexia was identified, particularly pertinent to reading Kanji, at the
neurology clinic. His initial Mini-M.. View More»
