Acute megakaryoblastic leukemia with increased hematogones in children.

We describe 2 patients, a 4-month-old male and a 17-month-old female, with de novo acute megakaryoblastic leukemia with increased number of hematogones at diagnosis. Both children were admitted in the hospital with thrombocytopenia. The bone marrow smears in the first child revealed the presence of 60% cells with morphologic features consistent with acute megakaryoblastic leukemia.