Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , which results in crowding of the bronchovascular structures . Within this limitation , there is no pleural effusion , pneumothorax or focal airspace consolidation . Undulations of the right hemidiaphragm are unchanged . The heart is normal in size , and the hilar structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .