Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain under - inflated with slightly improved inspiratory effort compared to the most recent prior study . There is persistent mild elevation of the left hemidiaphragm compared to the right . The bronchovascular markings are slightly accentuated in the setting of low lung volumes . Despite this , no focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits . The trachea is midline . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Low lung volumes with no acute cardiopulmonary process .