RATIONALE: Collecting and storing samples of tissue and blood from patients with cancer to study in the laboratory may help doctors learn more about changes that may occur in DNA and identify biomarkers related to cancer. PURPOSE: This laboratory study is looking at changes in the DNA of tissue samples that were collected from patients with acute myeloid leukemia.
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Prognostic stratification of patients through BAALC and ERG overexpression and microarray gene-expression signatures
Timeframe: Baseline
Differential microRNA expression
Timeframe: Baseline
Relative contribution of genetic markers in predicting clinical outcome
Timeframe: Baseline