Philadelphia chromosome-positive T-cell acute lymphoblastic leukemia: a case report
Qianze Dong1, Tarneem Darwish1,2, Meyerson Howard1,2
1Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA.
The Journal of International Medical Research
|February 29, 2024
Summary
Philadelphia chromosome-positive (Ph+) T-cell acute lymphoblastic leukemia (T-ALL) is a rare aggressive leukemia. This case highlights diagnostic challenges and successful treatment with imatinib and stem cell transplantation.
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- Philadelphia chromosome-positive (Ph+) T-cell acute lymphoblastic leukemia (T-ALL) is a rare and aggressive hematologic malignancy.
- Distinguishing Ph+ T-ALL from the T-cell lymphoblastic crisis of chronic myeloid leukemia (CML) can be diagnostically challenging.
Observation:
- A rare case of de novo Ph+ T-ALL presented significant diagnostic difficulties.
- Comprehensive analysis including clinical, immunophenotypic, cytogenetic, and xenotransplantation data was crucial for diagnosis.
Findings:
- The study confirmed a diagnosis of Ph+ T-ALL based on integrated data.
- The patient achieved complete remission following treatment with imatinib and haploidentical stem cell transplantation.
Implications:
- This case underscores the importance of thorough diagnostic evaluation for rare leukemias.
- Successful treatment strategies involving targeted therapy and stem cell transplantation offer hope for patients with Ph+ T-ALL.


