A healthy 68-year-old woman presented to the emergency department with a 6-month history of neck pain, weakness of the arms, hand incoordination, difficulty walking and tingling sensations in the arms ...

Chiari malformations are a heterogeneous group of disorders comprising abnormalities associated with the hindbrain. The most common types are Chiari 1 malformation (CM-I) and Chiari 2 malformation (CM ...