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[Clinico-immunological characteristics of lymphoid tumors in children]

L A Makhonova, N N Tupitsyn, A V Kiselev

    Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
    |March 9, 2002
    PubMed

    Insights

    Immunophenotyping distinguishes pediatric acute lymphoblastic leukemia (ALL) from non-Hodgkin

    Area of Science:

    • Pediatric Hematology-Oncology
    • Immunology
    • Cancer Biology

    Context:

    • Distinguishing between acute lymphoblastic leukemia (ALL) and non-Hodgkin's lymphoma (NHL) in children is crucial for accurate diagnosis and treatment.
    • Lymphoid tumors in pediatric patients present complex diagnostic challenges.
    • Previous studies have highlighted the importance of immunological markers in classifying lymphoid malignancies.

    Purpose:

    • To compare the clinical and immunological characteristics of lymphoid tumors in children with ALL and NHL.
    • To identify key diagnostic criteria for differentiating ALL and NHL based on immunophenotyping.
    • To correlate tumor immunophenotype with tumor site, growth patterns, and prognosis.

    Summary:

    • A study of 591 children with ALL and NHL utilized cytological, morphological, and immunological analyses to differentiate these lymphoid tumors.
    • Acute lymphoblastic leukemia (ALL) was characterized by immature lymphoid cells (e.g., CD34+, pre-B, T-cell forms), while non-Hodgkin's lymphoma (NHL) showed mature B- and T-cell subtypes without CD34.
    • Anaplastic giant lymphoma, a subtype of NHL, was identified by large, anaplastic cells expressing CD30 antigen.

    Impact:

    • Immunophenotyping provides significant value in diagnosing pediatric lymphoid tumors, correlating with tumor growth characteristics and prognosis.
    • Findings aid in tailoring antitumor therapy programs for children with ALL and NHL.
    • This research enhances the understanding of lymphoid tumor heterogeneity in pediatric oncology.

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