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[Tumor progression in chronic lympholeukemia].

F E Faĭnshteĭn, A M Polianskaia

    Terapevticheskii Arkhiv
    |January 1, 1984
    PubMed
    Summary

    Malignant transformation in chronic lympholeukemia (CLL) is rare, often presenting as Richter's syndrome or prolymphocytoid/lymphoblastic transformation. Early diagnosis is crucial for appropriate lymphosarcoma-based treatment.

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    [The characteristics of the clinical course of lymphosarcomas in conformity with the morphological variants of the WHO and Working Formulation classifications].

    Terapevticheskii arkhiv·1991

    Area of Science:

    • Hematology
    • Oncology

    Background:

    • Chronic lympholeukemia (CLL) is a lymphoid malignancy characterized by the accumulation of mature B lymphocytes.
    • While generally indolent, CLL can undergo malignant transformation, a rare but significant event.

    Observation:

    • Tumor progression in CLL can manifest as Richter's syndrome, featuring lymphadenopathy, splenomegaly, extranodal tumors, fever, and intoxication.
    • Biopsies during transformation reveal atypical cells like blasts and histiocytes, differing from typical CLL morphology.
    • Rare prolymphocytoid transformation shows increased prolymphocytes, while lymphoblastic transformation involves blasts with a small lymphocyte phenotype.

    Findings:

    • Richter's syndrome represents a dramatic clinical and morphological shift in CLL.
    • Prolymphocytoid and lymphoblastic transformations present distinct cellular characteristics and diagnostic challenges.
    • The presence of atypical cells in biopsy specimens is a key indicator of malignant transformation.

    Implications:

    • Recognizing these rare transformations is vital for accurate diagnosis and patient management.
    • Early identification necessitates treatment protocols typically used for lymphosarcomas.
    • Understanding these transformation pathways improves prognostic accuracy and therapeutic strategies in CLL management.

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