What is secondary acute myeloid leukemia, or secondary AML?

Expert Dr. David Steensma explains that secondary acute myeloid leukemia, or secondary AML, is AML that happens in someone who has another condition, such as myelodysplastic syndrome (MDS) or another blood disorder. It can also happen in people who have certain conditions such as Down syndrome. AML-MRC and tAML are two types of secondary AML because they happen in people who already have, or had, another condition.