Syndromes associated with dementia

Alzheimer’s disease
Pick’s disease
Parkinson’s disease
Shy-Drager syndrome (Multisystem degeneration)
Huntington’s chorea
Steel-Richardson syndrome (progressive Supranuclear palsy)
Binswanger’s disease (subcortical arteriosclerotic encephalopathy)
Wilson’s disease
Leigh’s disease
Creutzfeldt-Jacob disease
Gerstmann-Straussler-Scheinker disease
ALS-Parkinson’s-Dementia complex of Gaum
Syndromes associated with mental retardation
Down’s syndrome
Turner’s syndrome
Kleinfelter’s syndrome
Cri du chat syndrome
Fragile X syndrome
Hartnup’s disease
Tay-Sachs disease
Gaucher’s disease
Niemann-Pick disease
Lesch Nyhan syndrome
Hurler’s disease
Hunter’s disease
Sanfillipo’s disease
Renpenning’s syndrome
Sturge-Weber syndrome
Crouzon’s syndrome
Apert’s syndrome
De Lange syndrome (Amsterdam dwarfism)