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Acute bilineage leukemia after chronic myelogenous leukemia
S R Williams1, S R Wellhausen, R L Barker
1Division of Medical Oncology/Hematology, University of Louisville School of Medicine, USA.
The Journal of the Kentucky Medical Association
|October 10, 1997
Summary
Blastic transformation of chronic myelogenous leukemia (CML) can present as bilineage leukemia, with both myeloid and lymphoid cells. This case highlights the importance of flexible diagnostics for unusual hematologic malignancies.
Area of Science:
- Hematology
- Oncology
- Molecular Biology
Background:
- Blastic transformation of chronic myelogenous leukemia (CML) can involve myeloid, lymphoid, or mixed lineages.
- Biphenotypic or bilineage leukemia represents a minority of CML transformation cases.
Observation:
- A case of CML with bilineage blastic transformation was investigated.
- The blastic phase showed a predominance of lymphoid blasts alongside myeloid cells.
Findings:
- Morphologic, cytochemical, immunocytochemical, and molecular studies were employed for diagnosis.
- The patient was treated for acute lymphoblastic leukemia (ALL) and showed a positive response.
Implications:
- This case underscores the need for adaptable diagnostic approaches in hematologic malignancies.
- Accurate characterization of unusual phenotypic presentations is crucial for effective patient management.