DIFFERENTIAL DIAGNOSIS OF GENETIC AND INHERITED METABOLIC DISORDERS CAUSING MENTAL RETARDATION

Differential diagnosis of genetic and inherited metabolic disorders causing mental retardation are : 
-tuberous sclerosis 
-adrenoleucodystrophy 
-Rett Syndrome 
-Lesch Nyhan's Syndrome 
-metachromatic leukodystrophy 
-Sanfilippo syndrome 
-Hurler syndrome 
-Hunter syndrome 
-phenylketonuria
-Tay-Sachs disease
​-galactosemia