الفهرس 
LeukemiaOnly 14 pages are availabe for public view
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Abstract
Acute lymphoblastic leukemia (ALL) is a hemopoetic disorder characterized by a block in differentiation of hemopoiesis, resulting in growth of clonal population of neoplastic cell or
blasts.
Moreover, (WHO) classification for ALL added the genetic,
immunophenotyping, biological and clinical feature to the
morphological finding.
Immunophenotyping has became an important diagnostic tool
in establishing the diagnosis and classification of acute
lympoblastic leukemia.
CD 123 is an 0. subunit of a heterodimcr IL-3 receptor, a
member of the cytokine receptor superfamily. IL-3 is known to
be involved in proliferation and maturation of human 8 cells.
B-lymphoid blasts from acute lymphoblastic leukemia (ALL)
have been shown to express functional CD 123
The purposes of the present study were to examine the
expression of CD 123 on newly diagnosed 8 -cell ALL cases by
flow cytometry.