Acute myelogenous leukemia (AML) is the most coomon acute leukemia in adults with and annual incidence of 4 cases per 100 000 inhabitans. Median age at diagnosis is 70 years. For patients below 55 years, the prognosis has gradually improved the last decades, but elderly patiens still do poorly; the survival being around 30% with no improvement of outome after standard chemotherapy treatment.