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Case Reports in Neurological Medicine
Volume 2019, Article ID 2929782, 5 pages
https://doi.org/10.1155/2019/2929782
Case Report

Transient Dyschromatopsia, Static Form Agnosia, and Prosopagnosia Observed in a Patient with Anti-NMDA Receptor Encephalitis

1Department of Neurology, International University of Health and Welfare Hospital, Japan
2Department of Neurology, Hiratsuka City Hospital, Japan
3Department of Language and Hearing Sciences, International University of Health and Welfare, Japan

Correspondence should be addressed to Ritsuo Hashimoto; pj.ca.whui@oustir

Received 29 January 2019; Accepted 11 March 2019; Published 2 April 2019

Academic Editor: Norman S. Litofsky

Copyright © 2019 Ritsuo Hashimoto et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We presented a case of a 19-year-old woman who suffered from anti-N-methyl-D-aspartate (NMDA) receptor encephalitis associated with ovarian teratoma. The patient showed a variety of higher visual symptoms which changed over the recovery phase of the disease. In chronological order, she experienced cortical blindness, amblyopia, dyschromatopsia, static form agnosia, and prosopagnosia. Among these symptoms, the most intriguing was the static form agnosia. Although she could recognize the forms of moving objects, she could not make out those of stationary ones. All of these visual symptoms were transient, implying that she might have incidentally regained the function of the distinct cortical visual areas in the time course of follow-up. This case further suggests that visual functions concerned with the perceptions of static form and form-from-motion could be dissociable and may rely on distinct brain regions.