Arnold Syndrome Wikipedia

Chiari Malformation: A Complex Neurological Condition

Understanding the Basics

Chiari malformation, often referred to as Arnold-Chiari malformation, is a neurological condition characterized by the herniation of brain tissue into the spinal canal. This condition can be classified into two types:

Type I Chiari Malformation

In Type I Chiari malformation, the cerebellar tonsils, which are located at the base of the cerebellum, extend slightly below the foramen magnum, the opening at the base of the skull. This type is typically associated with headaches and neck pain.

Type II Chiari Malformation

Type II Chiari malformation, also known as Arnold-Chiari malformation, is a more severe form in which both the cerebellar tonsils and the brainstem extend into the spinal canal. This type can lead to more serious neurological symptoms, including difficulty breathing, swallowing, and motor control issues.