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Radiology News


Chiari I malformation

Chiari I malformation is the caudal descent of the cerebellum and brainstem through the foramen magnum.  The likelihood of becoming symptomatic is proportional to the degree of downward descent of the tonsils. This patient presented incidentally with neck pain.  Chiari I malformation is characterised by inferior herniation of the cerebellar tonsils through the foramen magnum, due essentially to a mismatch between size and content of the posterior fossa.

Chiari I malformation Reviewed by Sumer Sethi on Thursday, February 19, 2015 Rating: 5

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