{Reference Type}: Case Reports {Title}: A case of AML with complex karyotype and chromosomal rearrangement of KMT2A. {Author}: Moshref Razavi H;Minor A; {Journal}: Clin Case Rep {Volume}: 12 {Issue}: 7 {Year}: 2024 Jul 暂无{DOI}: 10.1002/ccr3.9139 {Abstract}: This is a case of an elderly patient diagnosed with acute myeloid leukemia (AML). While morphological findings, including numerous long, slender, cigar-shaped Auer rods, suggested AML with t(8;21), cytogenetic and FISH analysis revealed abnormalities in chromosome 11 and the KMT2A (MLL) gene. The patient also exhibited double minutes, typically seen in AML and linked to a complex karyotype and poor prognosis. Correlating morphological findings with molecular genetics and cytogenetics is crucial for accurate diagnosis and treatment.