Primary basilar invagination

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Primary basilar invagination

Synonyms: Bull-Nixon syndrome

A rare skeletal developmental defect characterized by congenital upward translocation of the upper cervical spine and clivus into the foramen magnum. It can be asymptomatic or associated with severe neurological dysfunction.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version March 2024

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Primary basilar invagination?

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Clinical Trials

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