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5 Facts you should know about

Arnold–Chiari malformation

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1

Arnold–Chiari malformation is a malformation of the skull

2

It is usually caused by structural defects in the brain and spinal cord that occur during fetal development

3

It consists of a downward displacement of the cerebellar tonsils through the foramen magnum

4

The cerebrospinal fluid outflow is caused by phase difference in outflow and influx of blood in the vasculature of the brain

5

Headache is the hallmark sign of Chiari malformation, especially after sudden coughing, sneezing, or straining

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