IntroductionAcute myeloid leukemia (AML) may present with either concomitant or isolated extramedullary (EM) AML, also termed myeloid sarcoma (MS). EM AML is defined by infiltrating AML blasts effacing normal tissue as demonstrated by histological evaluation. 1 Data on the prevalence of EM AML are based on retrospective or clinical analyses, and they possibly under-estimate the true prevalence,
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