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Microcephaly, intellectual disability, sensorineural deafness, epilepsy, abnormal muscle tone syndrome
disorderSNOMED 1254651003CUI C4225276
Signs & Symptoms
Based on Human Phenotype Ontology (HPO) disease-phenotype annotations.
Central hypotonia
Very frequent (80-99%)HP:0001252
Decreased size of cranium
Very frequent (80-99%)HP:0000252
Electroencephalogram abnormal
Very frequent (80-99%)HP:0002353
Impaired vision
Very frequent (80-99%)HP:0000505
Psychomotor development deficiency
Very frequent (80-99%)HP:0001263
Sensorineural deafness
Very frequent (80-99%)HP:0000407
Abnormal brain morphology
Frequent (30-79%)HP:0012443
ASD
Frequent (30-79%)HP:0000729
Cerebral hypomyelination
Frequent (30-79%)HP:0006808
CVI
Frequent (30-79%)HP:0100704
Epilepsy
Frequent (30-79%)HP:0001250
Feeding difficulties
Frequent (30-79%)HP:0011968
Generalized myoclonic seizure
Frequent (30-79%)HP:0002123
Generalized non-motor (absence) seizure
Frequent (30-79%)HP:0002121
Generalized tonic-clonic seizure (without specification of onset)
Frequent (30-79%)HP:0002069
Hypotonia, early
Frequent (30-79%)HP:0008947
Inability to walk
Frequent (30-79%)HP:0002540
Involuntary muscle stiffness, contraction, or spasm
Frequent (30-79%)HP:0001257
Mental retardation, severe
Frequent (30-79%)HP:0010864
Moderate mental retardation
Frequent (30-79%)HP:0002342
Nonverbal
Frequent (30-79%)HP:0001344
Poor eye contact
Frequent (30-79%)HP:0000817
Postnatal failure to thrive
Frequent (30-79%)HP:0001508
Severe expressive language delay
Frequent (30-79%)HP:0006863
Severe receptive language delay
Frequent (30-79%)HP:0011352
Appendicular hypertonia
Occasional (5-29%)HP:0002509
Brain degeneration
Occasional (5-29%)HP:0012444
Cerebral cortex atrophy
Occasional (5-29%)HP:0002120
Chronic constipation
Occasional (5-29%)HP:0012450
CNS hypomyelination
Occasional (5-29%)HP:0003429
Related Conditions
Congenital microcephalus(parent)
Global developmental delay(parent)
Hearing loss associated with syndrome(parent)
Developmental hereditary disorder(parent)
Hereditary disorder of musculoskeletal system(parent)
Congenital sensorineural hearing loss(parent)
Disease of skeletal muscle(parent)
Recessive hereditary disorder (autosomal)(parent)
Genetic intellectual disability(parent)
Hereditary hearing loss(parent)
Quick Facts
- SNOMED CT
- 1254651003
- UMLS CUI
- C4225276
- Fully Specified Name
- Microcephaly, intellectual disability, sensorineural hearing loss, epilepsy, abnormal muscle tone syndrome (disorder)
- Specialists
- 0
- Diagnostic Biomarkers
- 0
- HPO Phenotypes
- 30
Medical Disclaimer
This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding any medical condition or treatment plan.
Clinical content is derived from the SNOMED CT clinical ontology and curated medical knowledge graphs.