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Landau-Kleffner Syndrome MeSH Descriptor Data 2023

MeSH Heading
Landau-Kleffner Syndrome
Tree Number(s)
Unique ID
RDF Unique Identifier
Scope Note
A syndrome characterized by the onset of isolated language dysfunction in otherwise normal children (age of onset 4-7 years) and epileptiform discharges on ELECTROENCEPHALOGRAPHY. Seizures, including atypical absence (EPILEPSY, ABSENCE), complex partial (EPILEPSY, COMPLEX PARTIAL), and other types may occur. The electroencephalographic abnormalities and seizures tend to resolve by puberty. The language disorder may also resolve although some individuals are left with severe language dysfunction, including APHASIA and auditory AGNOSIA. (From Menkes, Textbook of Child Neurology, 5th ed, pp749-50; J Child Neurol 1997 Nov;12(8):489-495).
Entry Term(s)
Acquired Aphasia with Convulsive Disorder
Acquired Childhoood Aphasia with Convulsive Disorder
Acquired Epileptiform Aphasia
Aphasia, Acquired Epileptic
Aphasia, Acquired, With Convulsive Disorder
Aphasia, Epileptic, Acquired
Landau-Kleffner Acquired Epileptiform Aphasia
NLM Classification #
WL 340.5
Previous Indexing
Aphasia (1982-1995)
Epilepsy (1982-1995)
See Also
Public MeSH Note
History Note
Date Established
Date of Entry
Revision Date
Landau-Kleffner Syndrome Preferred
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