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  • Title: Transient myelodysplastic syndrome in X-linked agammaglobulinemia with a novel Btk mutation.
    Author: Narula G, Currimbhoy Z.
    Journal: Pediatr Blood Cancer; 2008 Dec; 51(6):826-8. PubMed ID: 18726917.
    Abstract:
    X-linked agammaglobulinemia (XLA) is a rare disorder in which recurrent infections occur due to low serum globulins and circulating B lymphocytes caused by a mutation in the Bruton tyrosine kinase (Btk) gene. While myelodysplastic syndrome (MDS) associated with low B lymphocyte counts has been described, clonal cytogenetic abnormalities in confirmed cases of XLA have never been reported. We describe a case of XLA with a novel Btk mutation who also had a persistent clonal population in the bone marrow with abnormal cytogenetics in multiple chromosomes that resolved 1(1/2) years after treatment with IVIG, mimicking a picture of transient MDS.
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