Congenital bilateral perisylvian syndrome
ORPHA: 98889
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 Congenital bilateral perisylvian syndrome, sourced from HPO and Orphanet clinical annotations.
Abnormality of neuronal migrationBilateral perisylvian polymicrogyriaDelayed speech and language developmentIntellectual disabilitySeizureSpasticityGlobal developmental delaySpecific learning disabilityHyperreflexiaFlexion contractureEEG with polyspike wave complexesLanguage impairmentDistal arthrogryposisFocal-onset seizureFloppy infantEEG with central focal spikesEEG with parietal focal spikesPerisylvian predominant thick cortex pachygyriaWeakness of facial musculatureMicrocephalyMicrognathiaHearing impairmentChoanal atresiaNystagmusPectus excavatumDysarthriaDysmetriaCerebellar vermis hypoplasiaFacial diplegiaIntrauterine growth retardationDysphagiaGastroesophageal refluxLower limb spasticityApneaDroolingParaparesisLimb hypertoniaSpastic tetraplegiaAspirationPseudobulbar paralysisCerebellar dysplasiaOromotor apraxiaProtruding tongueFocal sensory seizureEctopic posterior pituitaryFeeding difficultiesEEG with frontal focal spikesInfantile spasmsAbnormality of masticatory muscle
Classification & Codes
Orphanet Code
ORPHA:98889Congenital bilateral perisylvian syndrome
| Orphanet | ORPHA:98889 |
| Treatments | 0 drug(s) |
| Symptoms on record | 49 signs |
| Status | published |
Factual Authority
Last Updated3/20/2026
Clinical DataHPO · Orphanet
Drug DataFDA · EMA · CDSCO