Childhood acute erythtoleukemia diagnosis by flow cytometry.

ABSTRACT

Acute erythroid leukemia in children is very. Here is a case of erythroleukemia in a child of a age 1.5 years, which was diagnosed on peripheral smear, bone marrow examination, cytochemistry but was confimed on immunophenotyping. CD45 versus side scatter demonstrated blast population (29%) expressing CD45 of variable intensity (dim to negative). The myeloid nature of blast population showed bright expression of CD13, CD33. These blasts also showed bright positivity of CD71 which showed erythroid nature of blasts. Flow cytometry can be comprehensive enough to completely subtype cases of leukemias/myelodysplastic syndromes, polycythemia rubra vera, non-neoplastic conditions like reactive erythroid hyperplasia following immunosuppressive therapy or viral infections or nutritional deficiencies, unlyzed RBCs or thrombocytosis which may mimic acute erythroid leukemia on flow cytometry.