Although there have been a few reports of medical treatment, the main treatment is radical: remove or disconnect the affected side. However, it has a high mortality, and there have been reports of a vegetative state and seizures resuming, this time in the healthy hemisphere. Surgery should be done as early as possible to minimize damage caused by seizures. However, a trial with drugs can be attempted for a few months before surgery, and there is a slim chance of it succeeding. The earlier surgery be done, the more the remaining side will do the missing side's job. Benzodiazepines might control the seizures.
Hemimegalencephaly
Schizencephaly
Holoprosencephaly
Microlissencephaly
Lissencephaly
Megalencephaly
Hydranencephaly
Hemihydranencephaly