Tuberc Respir Dis.  1994 Dec;41(6):604-615. 10.4046/trd.1994.41.6.604.

Analysis of Bronchoalveolar Lavage Fluid cells from the Patients of Diffuse Interstitial Lung Diseases

• No authors listed

• KMID: 2152152
• DOI: http://doi.org/10.4046/trd.1994.41.6.604

Abstract

BACKGROUND
Analysis of cells in bronchoalveolar lavage(BAL) fluid had been used to predict the histologic changes of the bronchioles and alveoli in patients with interstitial lung diseases(ILD). Definitive diagnosis can be also made in some cases of ILD, such as histiocytosis. However, there are a few data of the cellular components in BAL fluid in normal Korean individuals and in patients with ILD. In order to evaluate the role of the cellular analysis of BAL fluid in prediction of alveolitis and differential diagnosis among ILDs, we compared the cellular components in BAL fluid from 50 normal individuals and 86 ILD patients. METHOD: BAL was performed by instillation and retrievement of normal saline with fiberoptic bronchoscopy The cell number was counted by Hemocytometer. Differential count was done up to 500 cells on slides prepared by Diff-Quik stain and non-specific esterase stain. We compared the recovery rate(RR), cell numbers(CN), and percentages of each cellular components(CP).
RESULTS
The results were as follows: 1) There was no difference in RR, CN and CP between the normal smoker group and normal non-smoker group. 2) Total cell numbers recoverd in BAL fluid increased in collagen vascular diseases(CVD), hypersensitivity pneumonitis(HP), idiopathic pulmonary fibrosis(IPF), and miliary tuberculosis(Mil TBC) groups. 3) The percentage of lymphocytes increased in HP, IPF and Mil TBC groups. Macrophage percentages increased in HP, IPF, and Mil TBC groups. Neutrophil percentages were increased in CVD, HP, IPE and Mil TBC groups. Eosinophil percentages were increased in HP, IPF and Mil TBC groups. The numbers of each cells showed same findings as the percentages did.
CONCLUSION
The analysis of cellular components of BAL fluid can predict the presence of alveolitis in many cases of ILDs. However, It was not helpful in differential diagnosis among ILDs.

Keyword

Bronchoalveolar lavage; Interstitial Lung Diseases

MeSH Terms

Bronchioles
Bronchoalveolar Lavage Fluid*
Bronchoalveolar Lavage*
Bronchoscopy
Carboxylesterase
Cell Count
Collagen
Diagnosis
Diagnosis, Differential
Eosinophils
Histiocytosis
Humans
Hypersensitivity
Lung
Lung Diseases, Interstitial*
Lymphocytes
Macrophages
Neutrophils
Carboxylesterase
Collagen