13 yo female presented with fatigue, bruise in the arms and weight loss. CBC: Hb 7g/dL, plt count 37 k/ul; WBC 23 k/ul. PB smear revealed frequent abnormal cells as shown below.
Flow cytometry study:
Cytogenetic: 46,XX,der(5)t(5;13)(q14.3;q21.3),der(7)t(1;7)(q31.2;q31.3)
Diagnosis: Mixed phenotype acute leukemia, T/myeloid, NOS
Diagnosis: Mixed phenotype acute leukemia, T/myeloid, NOS