Esmaeil Shahabi Satlsar
1 
, Farahnaz Ghahremanfard
2* , Mohammad Moslehabadi Farahani
4, Anahid Nabavi
31 Takhte Tavous Pathobiology Laboratory, Flow Cytometry Department, Tehran, Iran
2 Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
3 Rasad Pathobiology Laboratory, Flow cytometry Department, Tehran, Iran
4 Faculty of Dentistry, Semnan University of Medical Sciences, Semnan, Iran
Abstract
Mixed phenotypic acute leukemia (MPAL) is classified under acute leukemia of ambiguous lineage. Most
reported cases of acute ambiguous leukemia belong to bi-phenotypic leukemia. However, bi-lineage
leukemia is rare. A 57-year-old male was admitted with weakness and weight loss since one month ago. He
suffered from anorexia. In admission time he was pale and cachectic. Lymphadenopathy and splenomegaly
were not seen. In laboratory tests, the complete blood counts revealed normal limit leukocytes, anemia,
and thrombocytopenia. Bone marrow aspiration showed 60% blasts. Immunophenotyping showed a
dual population of blasts which expressed CD19, CD10, CD22, TDT and CD13, CD33 and cMPO. Thus,
flow cytometric immunophenotyping helped to establish a final diagnosis of MPAL; B/myeloid bi-lineage
leukemia.
Citation: Shahabi Satlsar
E, Ghahremanfard F,
Mosleh M, Nabavi A. Bilineage acute leukemia; a
case with B-lymphoblasts
and myeloid blasts. J Prev
Epidemiol. 2019;4(2):e14