Cri-du-chat syndrome is due to a partial deletion of the short arm of chromosome 5 and comprises a catlike cry, minor facial anomalies, growth delays, and psychomotor retardation. We identified a family with an insertion involving chromosome areas 5p and 16q. Four relatives are balanced carriers and
Treacher Collins syndrome: Phenotypic variability in a family including an infant with arhinia and uveal colobomas
โ Scribed by Hansen, Matthew; Lucarelli, Mark J.; Whiteman, David A. H.; Mulliken, John B.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 21 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0148-7299
- DOI
- 10.1002/(sici)1096-8628(19960102)61:1<71::aid-ajmg14>3.0.co;2-t
No coin nor oath required. For personal study only.
โฆ Synopsis
We report extreme expression of Treacher
Collins syndrome in an infant with arhinia, anotia, absent zygomatic bones, hypoplastic mandibular rami, and bilateral coloboma of iris, choroid plexus, and optic nerves. The Treacher Collins phenotype was mildly expressed in the mother and moderately in the sister. The father had no signs and was not ruled out as the father by DNA fingerprinting, thus making homozygosity by descent in the severely affected son very unlikely.
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