2020, Number 3
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Rev Cubana Hematol Inmunol Hemoter 2020; 36 (3)
Diagnosis, classification and treatment of acute leukemia of ambiguous lineage
Marsán SV, Díaz DG, Triana MY
Language: Spanish
References: 18
Page:
PDF size: 586.98 Kb.
ABSTRACT
Introduction: Acute leukemias of ambiguous lineage constitute a heterogeneous group of acute
leukemias that do not show clear evidence of differentiation along cell lineage. The definitive
diagnosis is made exclusively based on immunophenotypic characteristics, with the use of
multiparametric flow cytometry.
Objective: To update the diagnostic criteria, classification, as well as the clinical and therapeutic
management of acute leukemias of ambiguous lineage.
Methods: A search for scientific information related to the subject was carried out in clinical
hematology textbooks and in articles published through PUBMED in the last ten years. An
analysis and summary of the revised bibliography was carried out.
Information analysis and synthesis: The morphological characteristics of the leukemic cells
from patients with acute leukemia of ambiguous lineage do not show uniformity. Blasts of
different sizes and stages of maturation can be found simultaneously. These may appear as
lymphoid, myeloid, undifferentiated, or mixed.
Conclusion: Acute leukemias of ambiguous lineage constitute a high-risk subgroup, with
unfavorable prognosis and poor overall patient survival. Its timely report is essential to gather
criteria for making therapeutic decisions in this group of patients.
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