Related Experiment Videos
Multinuclear giant cells in bronchoalveolar lavage in interstitial lung diseases
C Agustí1, A Xaubet, R Arriols
1Servei de Pneumologia, Hospital Clinic, University of Barcelona, Spain.
Abstract:
The presence of multinuclear giant cells (MGC) is a pathological feature of interstitial lung diseases produced either by some organic and inorganic dust or by granulomatous disorders. In order to assess the diagnostic significance of the presence of MGC in bronchoalveolar lavage (BAL), the percent of MGC in the BAL of 52 subjects exposed to asbestos (26 with asbestosis) as well as from 79 with several interstitial lung diseases (idiopathic pulmonary fibrosis, pulmonary fibrosis associated with collagen vascular disorders, hypersensitivity pneumonitis and sarcoidosis) was compared with that of a control group of 14 subjects with no evidence of diffuse pulmonary disease. The results of this study suggest that MGC are present in the BAL of subjects with no pulmonary disease, and the quantification of these cells does not aid in the diagnostic evaluation of interstitial lung diseases.
Insights
Multinuclear giant cells (MGC) in bronchoalveolar lavage (BAL) are not reliable diagnostic markers for interstitial lung diseases. Their presence in BAL fluid does not significantly aid in diagnosing conditions like asbestosis or idiopathic pulmonary fibrosis.
Area of Science:
- Pulmonary Medicine
- Pathology
- Cell Biology
Background:
- Multinuclear giant cells (MGC) are observed in interstitial lung diseases.
- Causes include exposure to organic/inorganic dust and granulomatous disorders.
Purpose of the Study:
- To evaluate the diagnostic significance of MGC in bronchoalveolar lavage (BAL).
- To determine if MGC quantification aids in diagnosing interstitial lung diseases.
Main Methods:
- Compared MGC percentage in BAL fluid from patients with asbestos exposure (asbestosis), other interstitial lung diseases, and healthy controls.
- Analyzed BAL samples from 52 asbestos-exposed subjects, 79 with interstitial lung diseases, and 14 controls.
Main Results:
- MGC were detected in the BAL fluid of subjects without pulmonary disease.
- Quantification of MGC in BAL did not differentiate between healthy individuals and those with interstitial lung diseases.
Conclusions:
- The presence and quantification of MGC in BAL fluid lack diagnostic value for interstitial lung diseases.
- MGC are not a specific or sensitive biomarker for diagnosing these pulmonary conditions.