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Letters   |    
“Lexical Alexia” in a Chinese Semantic Dementia Patient
Simon Kang Seng Ting, M.D.; Shahul Hameed, M.D.
The Journal of Neuropsychiatry and Clinical Neurosciences 2013;25:E37-E38. doi:10.1176/appi.neuropsych.12100247
View Author and Article Information

Dept. of Neurology, National Neuroscience Institute
Singapore General Hospital
Singapore

Correspondence: Dr. Ting; e-mail: simon.ting.k.s@sgh.com.sg

Copyright © 2013 by the American Psychiatric Association

Extract

To the Editor: Semantic dementia (SD) is characterized by impaired ability in understanding the meaning of words, anomia, and surface dyslexia, but spared speech production.1 Neuroimaging typically shows anterior temporal lobe atrophy and hypometabolism in functional imaging.2,3 New diagnostic criteria have been proposed by Gorno-Tempini ML et al. in 2011, which incorporated the clinical and radiological characteristics of SD.4

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FIGURE 1. MRI T1 (left) and FLAIR (right) Images Showing Bilateral Anterior Temporal Atrophy, Right > Left
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References

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