Acute Leukemia with a Translocation T(4;11)(q21;q23): a Distinct Clinicopathological Entity: Report of a Case with Cytogenetic Clonal Evolution and Review of 146 Cases of the Literature

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Abstract
We present a cytogenetic clonal evolution that correlates morphological and immunological shifts in a case of a patient with a t(4;11) (q21;q23) acute leukemia. We take this opportunity to review 146 cases reported so far, with special reference to morphology, immunophenotyping, cytogenetics, clinical characteristics and evolution. Particular features are underlined, and prognosis, leukemic stem cell origin, chromosomal breakpoints and genes involved are discussed. A relationship between this type of leukemia and exposure to carcinogens is suggested by a high rate of secondary leukemia in adults and a high frequency in newborns and infants.

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