Infantile spasms-broad thumbs syndrome

Infantile spasms-broad thumbs syndrome is a rare neurologic disorder characterized by profound developmental delay, facial dysmorphism (i.e. microcephaly, large anterior fontanel, hypertelorism, downslanting palpebral fissures, beaked nose, micrognathia), broad thumbs and flexion and/or extension spasms. Bilateral cataracts, hypertrophic cardiomyopathy and hydrocele have also been reported. EEG shows hypsarrhythmic features and MRI may reveal partial agenesis of the corpus callosum, mild brain atrophy and/or ventriculomegaly. There have been no further descriptions in the literature since 1990.



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Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
        

Phenotype(s) retrieved from Orphanet

    Total: 15

HPO ID Term Frequency
HP:0000235 Abnormality of the fontanelles or cranial sutures Very frequent (99-80%)
HP:0000252 Microcephaly Very frequent (99-80%)
HP:0000316 Hypertelorism Very frequent (99-80%)
HP:0000347 Micrognathia Very frequent (99-80%)
HP:0000444 Convex nasal ridge Very frequent (99-80%)
HP:0000494 Downslanted palpebral fissures Very frequent (99-80%)
HP:0000518 Cataract Very frequent (99-80%)
HP:0000543 Optic disc pallor Very frequent (99-80%)
HP:0001250 Seizures Very frequent (99-80%)
HP:0001639 Hypertrophic cardiomyopathy Very frequent (99-80%)
HP:0002120 Cerebral cortical atrophy Very frequent (99-80%)
HP:0002353 EEG abnormality Very frequent (99-80%)
HP:0007370 Aplasia/Hypoplasia of the corpus callosum Very frequent (99-80%)
HP:0011304 Broad thumb Very frequent (99-80%)
HP:0100672 Vaginal hernia Very frequent (99-80%)


Phenotype(s) retrieved from case reports

    Total: 0

HPO ID Term # of case reports


Causative gene(s) retrieved from Orphanet

    Total: 0

Gene Symbol Gene Name Entrez Gene ID