DOI: 10.1002/iid3.930 ISSN:

A new CECR1 mutation associated with severe hematological involvement in ADA2 deficiency

Delia Nicoară, Cristina Niță, Ana Stanilă, Alexandru Martiniuc, Laura Popa, Eliana Petrescu, Mihaela Bătăneant, Ruxandra Ciofu, Adriana Guriță, Radu Tabăcaru, Ruxandra Ionescu, Laura Groșeanu
  • Immunology
  • Immunology and Allergy



The deficiency of adenosine deaminase 2 (DADA2) is an autosomal recessively inherited disease resulting from loss‐of‐function mutations in ADA2, formerly named CECR1 (cat eye syndrome chromosome region, candidate 1) gene. Disease manifestations could be separated into three major phenotypes: inflammatory/vascular, immune dysregulatory, and hematologic; however, most patients presented with significant overlap between these three phenotype groups.

Case Presentation

We present a case of DADA2 deficiency with disease onset at 3 years old, not recognized till the age of 18 with severe gastrointestinal vasculitis and recurrent episodes of neutropenia associated with a new CECR1 mutation.

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