Atypical Presentation of Adenosine Deaminase Deficiency ADA2 Deficiency

Here we report on a challenging diagnosis of VIAHS in a patient who presented at a very early age with a perianal abscess with fistula formation, fever, aphthous ulcers, bicytopenia, and hematochezia. Marked phenotypic variability can occur, and screening for families should be initiated in those with ADA2 mutation.

THE MANY FACES OF AUTOINFLAMMATION: ADENOSINE DEAMINASE 2 (DADA2) DEFICIENCY IN A 12 YEAR OLD

This article is dedicated to one of the auto-respiratory syndromes – adenosine deaminase deficiency 2 (deficiency of adenosine deaminase 2 – DADA2) in the 12-year-old. This rare disease is caused by mutations in the ADA2 gene (CECR1), that encodes the ADA2 protein. Clinical manifestations of DADA2 are very diverse and usually include systemic inflammatory reaction in the form of fever attacts, vasculopathy in the form of livedo reticulum, polyarteritis nodosa, ischemic and/or hemorrhagic strokes, as well as signs of immunodeficiency with hypogammaglobulinemia and bone marrow failure. Complex pathogenetic mechanisms, variety of clinical manifestations complicate both diagnosis of the disease and trial of pathogenetic therapy in patients with DADA2. The article describes DADA2 patient care, as well as provides present state analysis of the DADA2 problem in the world, including terminology, historical references, pathogenesis, diagnosis problems and clinical manifestations.

Gene Therapy For Adenosine Deaminase Deficiency: Successes and Limitations

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