Semantic dementia

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Semantic dementia

Synonyms: Semantic primary progressive aphasia | Semantic variant PPA

Semantic dementia (SD) is a form of frontotemporal dementia (FTD; see this term) characterized by the progressive amodal and profound loss of semantic knowledge (combination of visual associative agnosia anomia surface dyslexia or dysgraphia and disrupted comprehension of word meaning) and behavioral abnormalities attributable to the degeneration of the anterior temporal lobes.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version March 2024

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Semantic dementia?

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Clinical Trials

For a list of clinical trials in this disease area, please click here.