Chiari malformation type I
ORPHA: 268882
Overview
human disease
Available Treatments (0)
No treatments linked yet
Clinical trials or compassionate use may be available — consult a specialist.
Clinical Presentation
Signs and symptoms associated with Chiari malformation type I, sourced from HPO and Orphanet clinical annotations.
Chiari type I malformationHeadacheRecurrent paroxysmal headacheNeck painSmall posterior fossaTinnitusNystagmusCranial nerve compressionVocal cord paralysisDysphagiaGait ataxiaProgressive cerebellar ataxiaMyelopathyVertigoLower limb hyperreflexiaIncreased intracranial pressureScoliosisFused cervical vertebraeSyringomyeliaSomatic sensory dysfunctionCervical C2/C3 vertebral fusionAnteriorly placed odontoid processCranial nerve paralysisDistal peripheral sensory neuropathyAbnormal vestibulocochlear nerve morphologyAbnormality of the clivusAbnormality of the eleventh cranial nerveAbnormality of the twelfth cranial nerveFunctional abnormality of the inner earAreflexia of upper limbsDysesthesiaStiff neckUrinary incontinencePhotophobiaDiplopiaMuscle weaknessAbnormality of the musculature of the lower limbsBrain stem compressionBabinski signBasilar impressionAdult onset sensorineural hearing impairmentCentral sleep apneaBasilar invaginationFatigable weakness of swallowing muscles
Classification & Codes
Orphanet Code
ORPHA:268882Chiari malformation type I
| Orphanet | ORPHA:268882 |
| Treatments | 0 drug(s) |
| Symptoms on record | 44 signs |
| Status | published |
Factual Authority
Last Updated3/20/2026
Clinical DataHPO · Orphanet
Drug DataFDA · EMA · CDSCO