KIT and acute myeloid leukemia: She was diagnosed with acute myeloid leukemia 11 years prior with a diagnostic bone marrow biopsy showing hypercellular marrow replaced by sheets of blast (95% myeloid blasts) with flow cytometry showing immunophenotype positivity for CD45, MPO, CD117 (dim), CD33, CD13 (DIM), and CD39 (DIM), and negative for CD34 and HLADR.