Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs demonstrate markedly low lung volumes . There is minimal bilateral lower lobe atelectasis . The lungs are otherwise clear . There is no pneumothorax or pleural effusion . The hilar and cardiomediastinal contours are normal . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . Low lung volumes . 2 . No other acute cardiopulmonary process and no pneumothorax .