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A multiple congenital anomalies syndrome characterised by moderate postnatal overgrowth, macrocephaly, craniofacial dysmorphism (including high forehead and anterior hairline, downslanting palpebral fissures, prominent chin), developmental delay, and intellectual disability. Additional variable manifestations include unusual behaviour, with or without autistic traits, as well as ocular (e.g. strabismus, nystagmus, optic disc pallor/hypoplasia), gastrointestinal (e.g. vomiting, chronic diarrhoea, constipation), musculoskeletal (e.g. scoliosis and pectus excavatum), hand/foot (e.g. long, tapered fingers) and central nervous system (e.g. slightly enlarged ventricles) anomalies. The disease is caused by heterozygous mutation in the NFIX gene on chromosome 19p13.
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A multiple congenital anomalies syndrome characterized by moderate postnatal overgrowth, macrocephaly, craniofacial dysmorphism (including high forehead and anterior hairline, downslanting palpebral fissures, prominent chin), developmental delay, and intellectual disability. Additional variable manifestations include unusual behavior, with or without autistic traits, as well as ocular (e.g. strabismus, nystagmus, optic disc pallor/hypoplasia), gastrointestinal (e.g. vomiting, chronic diarrhea, constipation), musculoskeletal (e.g. scoliosis and pectus excavatum), hand/foot (e.g. long, tapered fingers) and central nervous system (e.g. slightly enlarged ventricles) anomalies. The disease is caused by heterozygous mutation in the NFIX gene on chromosome 19p13.
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