The prognosis for children with<unk>  varies depending on the malformation and severity of the syndrome. Many individuals remain at a 3–5 month developmental level. Life expectancy is short and many children with<unk>  will die before the age of 10. Some children with<unk>  will be able to roll over, sit, reach for objects, and smile socially. Aspiration and respiratory disease are the most common causes of illness or death. In the past, life expectancy was said to be around two years of age. However, with advances in seizure control, and treatments for respiratory illness, most children live well beyond that age. With other advances in therapy and the broader availability of services and equipment, some children with<unk>  are able to walk with varying degrees of assistance and to perform other functions once thought too advanced.
Lissencephaly
Schizencephaly
Holoprosencephaly
Hemihydranencephaly
Microlissencephaly
Hydranencephaly
Microhydranencephaly
Megalencephaly