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Related Experiment Videos

Pattern of malignant lymphomas in Rwanda.

P Ngendahayo1, R Schmauz

  • 1Department of Pathology, University Hospital of Butare, Rwanda.

Bulletin Du Cancer
|January 1, 1992
PubMed
Summary

This study analyzed 115 malignant lymphoma cases from 1979-1987. B-cell non-Hodgkin lymphomas were predominant, with increasing high-grade and extranodal cases observed over time.

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Area of Science:

  • Hematology
  • Oncology
  • Immunopathology

Background:

  • Malignant lymphomas are a diverse group of lymphoid neoplasms.
  • Accurate classification is crucial for understanding disease patterns and guiding treatment.

Purpose of the Study:

  • To analyze the epidemiological and pathological patterns of malignant lymphomas diagnosed between 1979 and 1987.
  • To apply updated classifications and monoclonal antibodies for precise B-cell and T-cell lymphoma identification.

Main Methods:

  • Retrospective analysis of 115 malignant lymphoma cases.
  • Utilized the updated Kiel classification for non-Hodgkin lymphomas.
  • Employed monoclonal antibodies L26 (B-cell) and UCHL1 (T-cell) for lymphocyte identification.

Main Results:

  • Non-Hodgkin lymphomas comprised 83.5% of cases, with B-cell lymphomas being predominant (94.8%).
  • High frequencies of lymphoplasmacytic/oid immunocytoma, extranodal, and high-grade lymphomas were noted.
  • An increasing trend in high-grade, extranodal, Burkitt's, and immunoblastic lymphomas was observed from 1984-1987 compared to 1979-1983.
  • Hodgkin's disease (16.5%) predominantly presented as mixed cellularity type and affected individuals aged 15-40 years.

Conclusions:

  • B-cell lymphomas are the major subtype of malignant lymphomas in the studied cohort.
  • The observed increase in aggressive lymphoma subtypes suggests evolving diagnostic criteria or changing disease incidence.
  • Hodgkin's disease predominantly affects young adults, with mixed cellularity being the most common histological type.

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