<unk> s, are a group of diseases characterized by auto-antibodies against aquaporin 4. After the discovery of anti-AQP4 autoantibody in neuromyelitis optica, it was found that it was also present in some patients with other clinically defined diseases, including multiple sclerosis variants like optic-spinal MS. The collection of these condition has been named<unk> " and "neuromyelitis optica spectrum disorders" (NMSD) and they are expected to respond to the same treatments as standard NMO. Some authors propose to use the name "autoimmune aquaporin-4 channelopathy" for these diseases, while others prefer a more generic term "AQP4-astrocytopathy" that includes also problems in<unk>  with a non-autoimmune origin.
Anti-AQP4 disease
Adult polyglucosan body disease
Akureyri disease
Anti-NMDA receptor encephalitis
MGUS polyneuropathy
Familial amyloid neuropathy
Anti-VGKC-complex encephalitis
Light chain deposition disease