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J Clin Neurol. 2012 Dec;8(4):311-3. doi: 10.3988/jcn.2012.8.4.311. Epub 2012 Dec 21.

A Case of Prosopometamorphopsia Restricted to the Nose and Mouth with Right Medial Temporooccipital Lobe Infarction that Included the Fusiform Face Area.

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1
Department of Neurology, Veterans Health Service Medical Center, Seoul, Korea.

Abstract

BACKGROUND:

Metamorphopsia includes a broad spectrum of visual perceptual distortions, such as alteration of perceived object size or, rarely, altered perception of faces, termed prosopometamorphopsia.

CASE REPORT:

This report describes a patient who complained of metamorphopsia restricted to the center of the face, particularly the lower part of the face (nose and mouth), following infarction of the right medial temporooccipital lobe that included the fusiform face area.

CONCLUSIONS:

The fusiform face area is commonly believed to be a face-selective cortical region dedicated to the visual analysis of face stimuli. We speculate that any injury to this brain area could bring about prosopometamorphopsia involving whole or unilateral face perception, or very rarely, as in our case, distortion restricted to the central area of the face. Furthermore, there could be topographical correspondences between facial structures and the fusiform face area.

KEYWORDS:

face perception; fusiform face area; prosopometamorphopsia

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