Rinsho Shinkeigaku (Clinical Neurology)

Case Report

Simultanagnosia and scene agnosia induced by right posterior cerebral artery infarction: a case report

Yasutaka Kobayashi, M.D., Ph.D.1), Tomoko Muramatsu, M.D., Ph.D.1), Mamiko Sato, M.D.1),Hiromi Hayashi, M.D.2) and Toyoaki Miura, M.D., Ph.D.1)

1)Department of Rehabilitation Medicine, Fukui General Hospital
2)Department of Rehabilitation Medicine, Fukui General Clinic

A 68-year-old man was admitted to our hospital for rehabilitation of topographical disorientation. Brain magnetic resonance imaging revealed infarction in the right medial side of the occipital lobe. On neuropsychological testing, he scored low for the visual information-processing task; however, his overall cognitive function was retained. He could identify parts of the picture while describing the context picture of the Visual Perception Test for Agnosia but could not explain the contents of the entire picture, representing so-called simultanagnosia. Further, he could morphologically perceive both familiar and new scenes, but could not identify them, representing so-called scene agnosia. We report this case because simultanagnosia associated with a right occipital lobe lesion is rare.
Full Text of this Article in Japanese PDF (782K)

(CLINICA NEUROL, 55: 722|727, 2015)
key words: simultanagnosia, scene agnosia, VPTA, context picture, right posterior cerebral artery infarction

(Received: 11-Mar-15)