Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . The lung volumes are large but the diaphragmatic contours are still domed . Findings concerning for small airway obstruction . There is no pleural effusion or pneumothorax . Cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Large lung volumes concerning for small airway obstruction .