primary basilar invagination
MONDO:0007188
Primary basilar impression (PBI) is a very rare skeletal developmental defect characterized by congenital upward translocation of the upper cervical spine and clivus into the foramen magnum. PBI can be asymptomatic or associated with severe neurological dysfunction.
Research intelligence
Directly mapped studies only · unique clinical trialsCurrent registry observations. Phase counts may overlap. Study start dates are not registry registration dates. Investigational interventions are not approved-treatment recommendations.
Medications under investigation
Verified disease and drug mappings that co-occur within the same study; not evidence of effectiveness.
MONDO disease family
Recruiting studies by city
Trial status
Trial phase
Study start year
Investigated drug interventions
Basilar invagination
Basilar invagination is invagination (infolding) of the base of the skull that occurs when the top of the C2 vertebra migrates upward. It can cause narrowing of the foramen magnum (the opening in the skull where the spinal cord passes through to the brain). It also may press on the lower brainstem. This is similar to Chiari malformation. That, however, is usually present at birth.
Background only. Canonical identity remains MONDO; clinical-trial relationships come from ClinicalTrials.gov.Drugs being studied
Disease identity and terminology: MONDO. Trial relationships: ClinicalTrials.gov.