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Caribbean T-cell lymphoma/leukemia.

S H Swerdlow, J A Habeshaw, A Z Rohatiner

    Cancer
    |August 15, 1984
    PubMed
    Summary
    This summary is machine-generated.

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    Caribbean T-cell lymphoma/leukemia (CATL) is a distinct neoplasm affecting West Indian women. This study investigated four cases, revealing characteristic clinical, pathological, and immunological features, including human T-lymphotropic virus association.

    Area of Science:

    • Oncology
    • Hematology
    • Immunology

    Background:

    • Caribbean T-cell lymphoma/leukemia (CATL) is a distinct neoplasm.
    • It shares similarities with Japanese adult T-cell leukemia/lymphoma but occurs in a different geographic region.
    • This study focuses on characterizing CATL in West Indian patients.

    Purpose of the Study:

    • To investigate the clinical, hematologic, pathologic, and immunologic features of Caribbean T-cell lymphoma/leukemia (CATL).
    • To understand the characteristics and prognosis of this distinct T-cell neoplasm.

    Main Methods:

    • Multiparameter approach including clinical, hematologic, pathologic, and immunologic investigations.
    • Analysis of lymph node biopsies, peripheral blood, and bone marrow.
    • Immunophenotyping of neoplastic cells.

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  • Serologic testing for human T-lymphotropic virus (HTLV).

    • Main Results:

    • CATL typically presents with adenopathy, hepatosplenomegaly, peripheral blood involvement, and hypercalcemia.
    • Neoplastic cells exhibit pleomorphism with irregular, multilobated, or cerebriform nuclei.
    • Lymph node biopsies show diffuse pleomorphic lymphoma with variable transformation.
    • Bone marrow involvement is common, with associated osteoclastic activity.
    • All cases are of T-cell origin, predominantly T-helper phenotype.
    • All patients tested positive for antibodies to human T-lymphotropic virus (HTLV).

    Conclusions:

    • CATL is a distinct clinicopathologic entity characterized by specific morphological and immunophenotypic features.
    • The disease has a poor prognosis.
    • Association with human T-lymphotropic virus (HTLV) is confirmed in CATL.
    • Further research is needed to understand the pathogenesis and treatment of CATL.