Chiari malformation

== English == === Etymology === Named after Austrian pathologist Hans Chiari. === Noun === Chiari malformation (countable and uncountable, plural Chiari malformations) (teratology) A malformation of the brain, consisting of a downward displacement of the cerebellar tonsils through the foramen magnum, sometimes causing hydrocephalus. ==== Synonyms ==== Arnold-Chiari malformation ==== Translations ====