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Pathology

AML is a malignant proliferation of haematopoietic precursor blast cells of non-lymphoid lineage

Aetiology

AML usually develops without a clear precipitant. 
Commonest leukaemia in adults

Signs

Gum hypertrophy, fleshy nodules, hypoxia, retinal haemorrhage, confusion, 
Lymphadenopathy, hepatomegaly, splenomegaly, lymphadenopathy, bone pain

Symptoms

Anaemia, infection, bruising and bleeding

Investigations

Bloods: FBC shows pancytopaenia with circulating blast cells 
Blood Film – Auer Rods
Bone marrow aspirate – Hypercellular and increased number of blast cells
Cytogenetics: Screen for molecular mutations

Treatment

Medical: Treat infections early, blood transfusion, chemotherapy, 
immunotherapy, stem cell transplantation

Prognosis

Variable depending on: age (<50 favourable), cytogenetic abnormalities, molecular genetic abnormalities, presenting blast count (<25 unfavourable), AML classification, preceding myelodysplasia (poor prognosis).
Infection, bleeding, organ damage, hair loss, GI toxicity, Infertility

Key Facts

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Key References

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