Fig. 1. Hematoxylin and eosin-stained bone marrow biopsy section (×10) from the year 2010 showing hypocellular marrow, with overall cellularity of less than 5% (A). A Jenner and Giemsa-stained bone marrow aspirate smear (×10) from the year 2018 showing more than 90% blasts (B).

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