For example , people with Down syndrome have a significantly increased risk of developing forms of acute leukemia ( especially acute myeloid leukemia ) , and Fanconi anemia is a risk factor for developing acute myeloid leukemia .
Researchers believe that some things may influence whether a person develops leukemia : Viruses that are believed to cause leukemia include : Fanconi anemia is also a risk factor for developing acute myelogenous leukemia .