from Section IV - Neoplastic Disorders of Bone Marrow
Published online by Cambridge University Press: 25 January 2024
Acute myeloid leukemia (AML) is a heterogenous group of diseases representing a clonal expansion of immature, non-lymphoid, bone marrow–derived cells that involve the bone marrow and blood and may also be present in other tissues [1,2]. In the pediatric population, AML is less common than lymphoblastic leukemia, accounting for approximately 18% of childhood leukemia diagnoses [3]. Although the cause of AML in many cases is unknown [1], as molecular genetics has been evolving over the last couple of decades, new molecular technology has enhanced our knowledge of the underlying genetic defects and gene mutations associated with the development of AML. It has been demonstrated that AML occurs more commonly in children with pre-existing genetic disorders, such as Down syndrome (DS) or Fanconi anemia, and familial cases of AML are now recognized [1]. A subset arises from pre-existing myelodysplastic syndrome (MDS) or after therapy for another neoplasm.
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