
Figure 1. Photomicrograph (× 200) of the bone marrow core biopsy highlighting CD34 positive blasts comprising approximately 15% of the bone marrow elements. Hematoxylin and eosin stain (H&E) on left, CD34 immunohistochemical stain on the right.
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Figure 2. Representative flow cytometric scatter plots highlighting myeloblast population. Full blast immunophenotype: positive for CD10 (subset), CD11b (subset), CD11c, CD13, CD33 (dim), CD117, MPO (small subset), and HLA-DR (dim); negative for TdT, CD2, sCD3, cCD3, CD5, CD4, CD8, CD19, CD22, CD25, CD64 and CD123.
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Figure 3. AML FISH analysis highlighting 5q deletion (red), gains of 5p (green), trisomy 8 (green), gains of 11q23 (KMT2A), three copies of 8q22 (RUNX1T1, orange) and 21q22 (RUNX1, green).
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Figure 4. Representative karyogram exhibiting complex female karyotype with an unbalanced translocation between 3q and 5q resulting in deletions of 3p and 5q; trisomies 5 (partial, leading to gain of 5p), 8, and 19; an isodicentric chromosome 21 leading to one extra copy of 21q/RUNX1; and another unbalanced translocation between 11q and 19p leading to gain of 11q/KMT2A. Multiple clones were present, exhibiting similar abnormalities with minor differences.