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KMID : 1100220030020020164
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Dementia and Neurocognitive Disorders
2003 Volume.2 No. 2 p.164 ~ p.168
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A Case of Right Side Dominant Semantic Dementia Presented as Prosopagnosia: A Case Report
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Kwon Jay-C.
Ahn Sun-Young
Park Young-Jin
Choi Mi-Young
Kang Sue-Jin
Na Duk-Lyul
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Abstract
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Semantic dementia (SD) is a temporal variant of frontotemporal lobar degeneration (FTLD). Clinical manifestation depends on which hemisphere is predominantly involved. Left side predominant group presents with naming difficulty and decreased auditory comprehension of words, whereas the right side predominant group presents with prosopagnosia. We report a 61-year-old right-handed woman presented with a 6-month history of impaired ability to recognize familiar faces of her acquaintances she used to know well. She scored 25/30 on Mini-Mental State Examination. Neuropsychological tests showed impairments in visuospatial, memory, and naming function. When presented with photographs of 25 famous people in Korea such as politicians, sports star, actors or actress, the patient could not tell their name at all and identify occupation only 7 of 25 people. But, 6 age/education matched controls showed correct responses of names in 12.3±4.1 and occupation in 20.8±3.2 of 25 people. Her brain MRI showed atrophy in both anterior temporal areas, more marked on the right side. We consider this patient as the first case of right side dominant SD reported in Korea.
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KEYWORD
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Semantic dementia, Prosopagnosia
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