Please Don't Call Me 'Arnold-Chiari' Unless You Mean It

Do you cringe when someone describes a positive or negative Babinski? If so, you may be a neurologist. Neurologists take their nomenclature seriously. For nomenclature aficionados, use of the eponym Arnold-Chiari should be reserved for Chiari type II malformations. 1 Thus, Ireland et al 2 struck a raw nerve with their use of Arnold-Chiari to describe multiple types of Chiari malformations. (Please forgive this expression of our neurological obsessive-compulsive personalities.)