Figure 1From: Successful establishment of primary small airway cell cultures in human lung transplantation Brushing of small airways under radiological guidance. A nylon cytology brush is guided down the working channel of a standard bronchoscope and then extended to reach 2-3 cm from the pleural surface. 1. Bronchoscope; 2. Cytology brush; 3. Pleural surface; 4. Diaphragm; 5. Right heart border.Back to article page