<prompt> Causes of macrocephaly includes?GalactosemiaWeaver syndromeSotos syndromeAll of the above  <response>: Causes of Megalencephaly Lysosomal storage diseases: Gangliosidosis, MPS Carbohydrate disorder: Galactosemia Aminoacidurias: Maple Syrup urine disease, Glutaric aciduria type-1 Neurogenerative diseases: Alexander disease, Canavan disease, Metachromatic leukodystrophy Neurocutaneous diseases: Neurofibromatosis, Tuberous sclerosis, Sotos syndrome, Achondroplasia Benign familial Megalencephaly Weaver syndrome: A condition that involves tall stature with or without macrocephaly, a variable degree of intellectual disability characteristic facial features. Ref: Nelsons edition, 6th edition, page 370. 