Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a persistent lower lingular opacification that appears increased and new elevation of the left hemidiaphragm compared to the prior radiograph and CT . Background coarsening of lung markings suggests widespread chronic airway inflammation . There is no pleural effusion or pneumothorax . The cardiac , mediastinal and hilar contours appear unchanged including moderate unfolding of the thoracic aorta .
    OUTPUT:
    
New volume loss and increased opacification at the left lung base , which may be seen with atelectasis associated with exacerbation of severe background chronic airway inflammation versus bronchopneumonia .