Autoimmune encephalitis
There are a number that have been described in children
1. Anti-voltage gated potassium channel (VGKC) encephalitis
2. Anti-glycine receptor (GlyR) encephalitis
3. Anti-GABA encephalitis
4. Anti-AMPA (alpha-amino-3-hydroxy-5 methyl-4 isoxazolepropionic acid) encephalitis
5. Antidopamine (D2) receptor
6. Anti-metabotropic glutamate receptor 5 (mGluR5) encephalitis
7. Anti Hu encephalitis
8. Anti Ma encephalitis
9. Anti glutamic acid decarboxylase 65 (GAD65) encephalitis
Antidopamine (D2) receptor encephalitis present differently with dystonia, termors, oculogyric crisis, Parkinsonism, and chorea. On imaging half of these patients have increased T2 signal in the basal ganglia
Anti Ma-2 encephalitis shows temporal lobe interstitial edema
Anti-GAD65 encephalitis shows increased T2/FLAIR signal in the hippocampus with mild bilateral amygdala or claustrum/external/extreme capsule swelling