9895/3 Acute myeloid leukemia without prior myelodysplastic syndrome



Definitions

Tumours of haematopoietic and lymphoid tissues
ICD-O-3 topography code: C42 and C77
ICD10: C92.8
           

/span>cute myeloid leukaemia (AML) with myelodysplasia-related changes is an acute leukaemia with 20% or more peri?pheral blood (PB) or bone marrow (BM) blasts with morphological features of myelodysplasia or a prior history of a myelodysplastic syndrome (MDS) or myelodysplastic/myeloproliferative neoplasm (MDS/MPN), or MDS-related cytogenetic abnormalities, and absence of the specific genetic abnormalities of AML with recurrent genetic abnormalities. Patients should not have a history of prior cytotoxic or radiation therapy for an unrelated disease. Therefore, there are three possible reasons for assigning cases to this subtype: AML arising from previous MDS or MDS/MPN; AML with an MDS-?related cytogenetic abnormality; and AML with multilineage dysplasia. A given case may be assigned to this subtype for one, two or all three reasons (Table 6.02).

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