Items tagged “spine”

Spinal arachnoid cysts are relatively uncommon and may be either intradural (type III meningeal cyst) or extradural (type IA meningeal cyst). This article specifically focuses on spinal arachnoid cysts. For a general discussion of arachnoid cysts, refer to the main article: arachnoid cyst. Epi...

Chiari malformations are a group of defects associated with congenital caudal 'displacement' of the cerebellum and brainstem. Classification Initial descriptions were based on autopsy observations. Three types were described, with others added later. Types II and III are thought to be related ...