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Treacher-Collins syndrome in Child
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Treacher-Collins syndrome in Child

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Synopsis

Also called mandibulofacial dysostosis, a rare congenital condition characterized by distinct facial features, craniofacial hypoplasia, and ear defects. In severe cases, craniofacial malformations may cause life-threatening respiratory distress. However, severity is widely variable; mild cases present with slight abnormalities. Characteristic findings include underdeveloped or absent zygomas, micrognathia, cleft palate, downward-slanted eyes, coloboma, eyelash madarosis, macrostomia, malocclusion, small or absent ears, and inner ear abnormalities. Case-dependent complications include dysphonia, dyspnea, dysphagia, vision impairment, and commonly, hearing impairment. Surgery to correct deformities may be required.

Commonly caused by a mutation in the TCOF1 gene, although in rare cases due to mutations in the POLR1C or POLR1D genes. Most cases are the result of a new mutation, and about 40% are the result of autosomal dominant inheritance.

For more information on Treacher-Collins syndrome-1, see OMIM.

For more information on Treacher-Collins syndrome-2, see OMIM.

For more information on Treacher-Collins syndrome-3, see OMIM.

Codes

ICD10CM:
Q75.4 – Mandibulofacial dysostosis

SNOMEDCT:
82203000 – Treacher Collins syndrome

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Last Updated: 03/29/2017
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Treacher-Collins syndrome in Child
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Treacher-Collins syndrome : Hearing loss, Micrognathia, Eyelash madarosis, Teeth abnormalities
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