Optical genome mapping identifies novel ENOX2::RUNX1 t(X;21)(q26.1;q22.12) rearrangement in acute myeloid leukemia-myelodysplasia related: first case report

The identification of an ENOX2::RUNX1 fusion in AML-MR expands the spectrum of rare RUNX1 fusions. High-resolution approaches such as OGM enable precise delineation of fusion partners and breakpoints beyond the resolution of conventional cytogenetics. While the biological and clinical significance of this fusion remains to be determined, this finding highlights the value of OGM in the identification of novel and rare genomic rearrangements in leukemia and other malignancies.