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Translocation (8;13) and T-cell lymphoma. A case report
1Cytogenetics Laboratory, John Hunter Hospital, Newcastle, New South Wales, Australia.
Cancer Genetics and Cytogenetics
|January 1, 1993
Summary
This study details a patient with eosinophilia and T-cell lymphoma, presenting a unique translocation t(8;13) in bone marrow cells. This chromosomal abnormality evolved over time, leading to diagnoses of chronic myelomonocytic leukemia and stem-cell leukemia.
Area of Science:
- Hematology
- Oncology
- Cytogenetics
Background:
- Myeloproliferative disorders can present with complex genetic alterations.
- Eosinophilia and T-cell lymphoma can co-occur in hematologic malignancies.
- Chromosomal translocations are key drivers in the development of cancers.
Observation:
- A patient exhibited eosinophilia and T-cell lymphoma.
- A novel translocation, t(8;13)(p11.2;q12), was identified in all bone marrow cells at diagnosis.
- This translocation was absent in peripheral blood lymphocytes initially.
Findings:
- Over nine months, the t(8;13) translocation persisted, accompanied by trisomy 21 in all cells.
- Additionally, 4.5% of cells acquired an extra chromosome 9.
- Morphological and immunophenotypic analyses evolved from chronic myelomonocytic leukemia to stem-cell leukemia.
Implications:
- The unique t(8;13) translocation may play a crucial role in the pathogenesis of this patient's hematologic malignancy.
- Dynamic chromosomal changes can influence disease progression and diagnosis in myeloproliferative disorders.
- Understanding these genetic events is vital for accurate diagnosis and potential therapeutic strategies.