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Related Experiment Videos

Bronchoalveolar lavage (BAL) in miliary tuberculosis.

S K Sharma1, J N Pande, K Verma

  • 1Department of Medicine, All India Institute of Medical Sciences, New Delhi.

Tubercle
|September 1, 1988
PubMed
Summary

Bronchoalveolar lavage in miliary tuberculosis reveals increased lymphocytes and decreased macrophages. Epithelioid granulomas were observed in some patients, indicating cellular changes in this severe form of tuberculosis.

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Area of Science:

  • Pulmonary Medicine
  • Infectious Diseases
  • Microbiology

Background:

  • Miliary tuberculosis is a severe disseminated form of Mycobacterium tuberculosis infection.
  • Bronchoalveolar lavage (BAL) is a diagnostic tool for pulmonary infections.
  • Understanding the cellular profile in BAL fluid can aid in diagnosing and managing tuberculosis.

Purpose of the Study:

  • To analyze the cellular composition of bronchoalveolar lavage fluid in patients with miliary tuberculosis.
  • To compare BAL cellularity in miliary tuberculosis patients with normal subjects.

Main Methods:

  • Bronchoalveolar lavage (BAL) was performed on eight patients diagnosed with miliary tuberculosis.
  • Cellular analysis of BAL fluid was conducted.
  • Comparison of cell counts with data from normal subjects.

Main Results:

  • Significantly increased total cell count and lymphocyte count in BAL fluid of miliary tuberculosis patients.
  • Significantly decreased alveolar macrophage count in BAL fluid compared to normal subjects.
  • Epithelioid cell granulomas identified in the BAL fluid of two patients.

Conclusions:

  • BAL cellular analysis reveals distinct changes in miliary tuberculosis, including lymphocytosis and reduced macrophages.
  • The presence of epithelioid granulomas in BAL fluid supports the diagnosis.
  • BAL cellularity can serve as a biomarker for miliary tuberculosis.

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