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Acute biphenotypic leukemia in the adults
Yimin Shen1, Jianyong Li, Yongquan Xue
1First Hospital, Suzhou University, Jiangsu Institute of Hematology, Suzhou 215006, China.
Zhonghua Zhong Liu Za Zhi [Chinese Journal of Oncology]
|November 1, 2002
Summary
Acute biphenotypic leukemia (BAL) in adults presents unique clinical, biological, and poor prognostic features. Further research is needed to improve treatment strategies for this rare hematologic malignancy.
Area of Science:
- Hematology
- Oncology
- Cell Biology
Background:
- Acute biphenotypic leukemia (BAL) is a rare and complex hematologic malignancy.
- Understanding its distinct characteristics is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the clinical, biological, and prognostic features of adult acute biphenotypic leukemia (BAL).
- To compare BAL with acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL).
Main Methods:
- Morphologic, cytochemical, immunologic, and cytogenetic (MIC) examinations were performed on bone marrow specimens from 63 BAL patients.
- Patients received treatment protocols typically used for AML, ALL, or both.
Main Results:
- BAL showed no significant clinical differences compared to AML or ALL.
- Immunophenotyping revealed coexpression of myeloid and B-lineage antigens, with CD34 hyperexpression, suggesting early hematopoietic cell origin.
- The Philadelphia chromosome was present in 25.5% of BAL patients.
- Treatment response and overall survival rates for BAL were poor.
Conclusions:
- Adult patients with BAL exhibit distinct clinical, biological, and prognostic profiles.
- These unique features necessitate tailored therapeutic approaches for improved patient outcomes.