SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/1237420004
http://purl.bioontology.org/ontology/SNOMEDCT/1237420004
Preferred Name

X-linked intellectual disability, global development delay, facial dysmorphism, sacral caudal remnant syndrome

Definitions
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalised hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal and cardiovascular anomalies have also been described. The disorder is caused by pathogenic mutations in the TAF1 gene (Xq13.1). The pattern of inheritance is X-linked. A rare multiple congenital anomalies/dysmorphic syndrome characterised by global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalised hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal, and cardiovascular anomalies have also been described. A rare multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalized hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal, and cardiovascular anomalies have also been described. A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalized hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal and cardiovascular anomalies have also been described. The disorder is caused by pathogenic mutations in the TAF1 gene (Xq13.1). The pattern of inheritance is X-linked.
Synonyms
X-linked intellectual disability, global development delay, facial dysmorphism, sacral caudal remnant syndrome (disorder)
Type http://www.w3.org/2002/07/owl#Class
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