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Related Experiment Videos

Pattern of lymph node pathology in a private pathology laboratory.

L H Kim1, S C Peh, K S Chan

  • 1Department of Pathology, Faculty of Medicine, University of Malaya, Kuala Lumpur.

The Malaysian Journal of Pathology
|November 9, 2000
PubMed
Summary

This study analyzed 136 lymph node biopsies, finding reactive hyperplasia and metastatic carcinoma were the most common pathologies. Malignant lymphomas were less frequent, highlighting key patterns in nodal disease investigation.

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Area of Science:

  • Pathology
  • Oncology
  • Immunology

Background:

  • Lymph node excision biopsy is a standard procedure for investigating lymphadenopathy.
  • Understanding the spectrum of nodal pathologies is crucial for accurate diagnosis and patient management.
  • Previous studies have focused on specific diseases or hospital settings, necessitating a review of private practice data.

Purpose of the Study:

  • To determine the pattern of nodal pathology encountered in a private diagnostic pathology laboratory.
  • To analyze the frequency of various non-cancer-staging lymph node conditions.
  • To characterize the demographic and ethnic distribution of different nodal pathologies.

Main Methods:

  • Retrospective review of 137 lymph node biopsies submitted for primary investigation of lymphadenopathy in 1997.

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  • Histological examination using H&E stains, supplemented by histochemical and immunoperoxidase stains.
  • Sub-classification of malignant lymphomas using immunophenotyping with monoclonal and polyclonal antibodies.

    • Main Results:

    • Reactive hyperplasia (33.1%) and metastatic carcinoma (25.7%) were the most frequent diagnoses in 136 analyzed cases.
    • Malignant lymphomas accounted for 12.5% (6 Hodgkin's lymphoma, 11 non-Hodgkin's lymphoma).
    • Tuberculosis (13.9%) and Kikuchi's disease (8.2%) were also significant findings, with Kikuchi's disease exclusively affecting females.

    Conclusions:

    • Reactive hyperplasia and metastatic carcinoma are the predominant findings in lymph node biopsies for lymphadenopathy in this private practice setting.
    • Malignant lymphomas represent a smaller proportion of cases compared to benign conditions and metastatic disease.
    • The study provides valuable insights into the diagnostic yield of lymph node biopsies in a private laboratory context.