Open Access Case Report Article ID: ABMR-1-101

    T-ALL with TEL/AML1 Translocation, Aberrant Expression of CD19 and 33: Case Report and Literature Review

    Kave Jasseb, Maria Kavianpour, Javad Mohammadi Asl, Zahra Shahpouri Arani, Vahid Fallah Azad, Mansoureh Haghighi, Najmaldin Saki*

    We herewith introduce a 9-year-old boy presenting with leukocytosis, anemia and high lymphoblast count who had a pale complexion as well as weight loss. His cytogenetic analysis revealed aberrant chromosomal rearrangements in different clonal populations harboring 46XY karyotype with t (12; 21) (p12; q22), which was confirmed by DNA sequencing. Flowcytometry assay detected aberrant B lymphocyte and myeloid CD markers such as CD19 (22.0%) and CD33 (20.5%), respectively. To our knowledge, this is the first case of a patient initially diagnosed as TEL/AML1 transcript positive T-ALL expressing CD19 and CD33 markers. The present article also highlights the need for molecular gene rearrangement studies to determine the precise lineage of ambiguous ALL clones.

    Keywords: T-Acute Lymphoblastic leukemia; TEL/AML1; Aberrant phenotypes

    Published on: Dec 14, 2016 Pages: 1-4

    Full Text PDF Full Text HTML DOI: 10.17352/abmr.000001
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