Rubinstein-Taybi syndrome: New neuroradiological and neuropsychiatric insights from a multidisciplinary approach

Paola F. Ajmone, Sabrina Avignone, Cristina Gervasini, Antonella Giacobbe, Fedrico Monti, Antonella Costantino, Susanna Esposito, Paola Marchisio, Fabio Triulzi, Donatella Milani

Research output: Contribution to journalArticle

Abstract

Rubinstein-Taybi syndrome is a rare, autosomal dominant, plurimalformative disorder that is clinically characterized by intellectual disability and a wide spectrum of congenital anomalies; facial dysmorphisms are typical, and broad thumbs and great toes are particularly distinctive. Its genetic basis is only partially known, with a detection rate of approximately 65-70%; specifically, microdeletions or mutations in the CREBBP or EP300 genes can be found. Much is known about its clinical features and health-care protocols, but some areas of clinical knowledge are currently unsolved. In particular, few efforts have been made until now to understand the variability in the neuropsychological and neurobehavioral profile and to deepen knowledge of the neuroradiological malformative pattern. Consequently, little is known about the possible genotype-phenotype correlations of these issues. Here, we report clinical and genetic data from a cohort of 23 RSTS Italian patients. The most common features in brain magnetic resonance imaging (MRI) were dysmorphic aspects of the corpus callosum (73.6%) with or without minor dysmorphisms of cerebellar vermis, periventricular posterior white matter hyperintensity, and other less common anomalies. The most interesting feature on the whole spine MRI scans was the tendency for a low-lying conus medullaris without terminal filum thickening. These data will help to improve neuropsychiatric and neuroradiological knowledge and highlight specific genotype-phenotype correlations.

Original languageEnglish
Pages (from-to)406-415
JournalAmerican Journal of Medical Genetics, Part B: Neuropsychiatric Genetics
Volume177
Issue number4
DOIs
Publication statusPublished - 2018

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Keywords

  • Behavioral phenotype
  • CREBBP gene
  • EP300 gene
  • Intellectual disability
  • MRI anomalies
  • RSTS
  • Tethered cord

ASJC Scopus subject areas

  • Genetics(clinical)
  • Psychiatry and Mental health
  • Cellular and Molecular Neuroscience

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