Orphanet: Familial developmental dysphasia

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Familial developmental dysphasia

Disease definition

Familial developmental dysphasia is a severe form of developmental verbal apraxia characterized by a deficit in spontaneous speech, writing, grammatical judgment and repetition, defective articulation, moderate to severe degree of dyspraxia, a reduced use of consonant clusters, and comprehension delay. Hearing and intelligence are normal.

ORPHA:1799

Classification level: Disorder

Synonym(s):
- Billard-Toutain-Maheut syndrome
- FOXP2-associated dysphasia
Prevalence: <1 / 1 000 000
Inheritance: Autosomal dominant
Age of onset: Childhood
ICD-10: F80.1
OMIM: 600117
UMLS: C1838630
MeSH: -
GARD: 1823
MedDRA: -

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Familial developmental dysphasia

ORPHA:1799

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