6 doctors weighed in:
Baby just diagnosed with chiari malformation?
6 doctors weighed in

Dr. Edward Smith
Neurology
5 doctors agree
In brief: Chiari 1? 4?
Chiari malformation has one common trait in its 4 different degrees of severity.
Chiari 4 is immediately obvious at birth or on pre-partum ultrasound exhibiting skin defects in lumbar area with herniation of nerves through the defect. Chiari 1 is much more common and often asymptomatic, consisting of extension of cerebellum into upper spinal canal. Headaches are commonest symptom.

In brief: Chiari 1? 4?
Chiari malformation has one common trait in its 4 different degrees of severity.
Chiari 4 is immediately obvious at birth or on pre-partum ultrasound exhibiting skin defects in lumbar area with herniation of nerves through the defect. Chiari 1 is much more common and often asymptomatic, consisting of extension of cerebellum into upper spinal canal. Headaches are commonest symptom.
Dr. Edward Smith
Dr. Edward Smith
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