A 46-year-old member asked:
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What is the difference between type 1 and type 2 chiari malformations?

1 doctor answer
Dr. Ramin AmirNovin
20 years experience in Neurosurgery
Several things: Type 1 chiari is usually found in later life and the cerebellar tonsils descend below the skull. Type 2 is usually found early on in life and associated with lower back defects in the spinal canal. The brain stem is also descended in type 2 chiaris and hence these patients are more symptomatic than type 1 patients. Please ask your md for more.
Answered on Nov 15, 2018
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