2q33.1q34 Deletion in a Girl with Brain Anomalies and Anorectal Malformation

Luisa Ronzoni, Antonio Novelli, Giulia Brisighelli, Angela Peron, Fabio Maria Triulzi, Vera Bianchi, Ernesto Leva, Maria Francesca Bedeschi

Research output: Contribution to journalArticlepeer-review


2q33 deletions are considered to constitute a distinct clinical entity (Glass syndrome or 2q33 microdeletion syndrome) with a characteristic phenotype. Most patients have moderate to severe developmental delay, speech delay, a particular behavioural phenotype, feeding problems, growth restriction, a typical facial appearance, thin and sparse hair, tooth abnormalities, and skeletal anomalies. Here, we report on a patient with a 2q33.1q34 deletion spanning 8.3 Mb of genomic DNA. Although her clinical features are very reminiscent of the 2q33 microdeletion syndrome, she also presented with brain and anorectal malformations. Based on the present and published patients with 2q33 deletions, we suggest that the critical region for the Glass syndrome may be larger than initially proposed. Moreover, we suggest that brain abnormalities might be an additional feature of the 2q33 microdeletion syndrome, but that anorectal malformation is likely not a key marker.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalCytogenetic and Genome Research
Issue number1
Publication statusPublished - 2016


  • 2q33 deletion syndrome
  • Anorectal malformation
  • Brain malformation
  • Phenotype/genotype correlation

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Genetics(clinical)


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