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Related Experiment Videos

Rubinstein-Taybi syndrome: the changing face.

J E Allanson1

  • 1Division of Genetics, Children's Hospital of Eastern Ontario, Ottawa, Canada.

American Journal of Medical Genetics. Supplement
|January 1, 1990
PubMed
Summary

Rubinstein-Taybi syndrome (RTS) presents with distinct facial features, developmental delays, and broad digits. Early recognition of RTS facial characteristics is crucial for timely diagnosis and intervention.

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Area of Science:

  • Medical Genetics
  • Pediatrics
  • Clinical Dysmorphology

Background:

  • Rubinstein-Taybi syndrome (RTS) is a rare genetic disorder characterized by multiple congenital anomalies.
  • Key features include intellectual disability, growth retardation, distinctive facial features, and broad thumbs and halluces.
  • The classical facial phenotype of RTS may not be apparent in early infancy.

Purpose of the Study:

  • To describe the early facial phenotype of Rubinstein-Taybi syndrome.
  • To aid in the early diagnosis of RTS by detailing characteristic facial features observable from the newborn period through infancy.

Main Methods:

  • Clinical evaluation of over 40 patients diagnosed with Rubinstein-Taybi syndrome.
  • Observation of patients across various age groups, from neonates to adults.
  • Detailed documentation of facial morphology and congenital anomalies.

Main Results:

  • The study identifies specific early facial characteristics of RTS, including palpebral fissure slant, epicanthal folds, ptosis, strabismus, high-arched palate, and ear anomalies.
  • Nasal features such as a beaked appearance, broad bridge, and deviated septum are noted.
  • These features may not be fully expressed until later childhood, highlighting the need for careful examination in infancy.

Conclusions:

  • Early identification of subtle facial features is essential for diagnosing Rubinstein-Taybi syndrome in infants.
  • Understanding the evolving facial phenotype aids in earlier recognition and management of RTS.
  • This detailed description of early facial signs can improve diagnostic accuracy for this rare MCA syndrome.

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