Biopsy Techniques: Optimization for Collection and Preservation
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Fiberoptic bronchoscopy provides a good tool to investigate bronchial biopsies, transbronchial biopsies, and bronchoalveolar lavage (BAL) in chronic inflammatory diseases such as asthma and chronic obstructive pulmonary disease (COPD) (1 -8 ). The advantage of bronchial biopsies over other sampling techniques, such as induced sputum or BAL, is that they give anatomical information on airway morphology, therefore allowing the examination of the different compartments of the bronchial wall such as epithelium, subepithelium, smooth muscle, and glands.
