Fellow, Dept of Hematopathology 1515 Holcombe Blvd, Unit 072 Huifei Liu, MD, PhD Fellow, Dept of Hematopathology 1515 Holcombe Blvd, Unit 072 The University of Texas at MD Anderson Cancer Center Houston, TX 77030
Clinical History 71-year-old man Anemia for several months with recent progressive shortness of breath PMH: asthma, hypertension, BPH, hyperlipidemia Testosterone supplement since 4/2013 Splenomegaly
PB: Blasts (18%) with eosinophilia (29%) and Anemia
PB: Atypical eosinophil
BM: 30% Blasts with 15% eosinophils
BM: ↑Immature Cells, Eosinophils, Megakaryocytyes
BM: Megakaryocytic Hyperplasia/Dysplasia
Flow Cytometry
Flow Cytometry
Immunophenotype of Blasts CD34+/CD117+/CD45+ CD13+/CD33+/CD38+/HLADR+ CD4dim/CD5dim/CD7p+/CD25p+/CD56+ MPO− CD2−/CD3−/CD10−/CD14−/CD15− CD19−/CD123−/TdT−
Cytogenetics & Molecular Diagnostics 45,XY,-7[20] FLT3 ITD ASXL1 PTPN11 PDGFRA rearrangement (-) PDGFRB rearrangement (-) BCR/ABL1 (-) CHIC2 deletion (-)
Diagnosis ACUTE MYELOID LEUKEMIA WITH FLT3-ITD MUTATION IN A BACKGROUND OF MARKED EOSINOPHILIA AND MARKED MEGAKARYOCYTIC HYPERPLASIA
Discussion 1+1=? 1+1+1=? 1+1+1+……=? How does multiple mutations interact to shape clinical presentation and treatment responses? 1+1=? 1+1+1=? 1+1+1+……=?