Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , results in crowding of bronchovascular structures . There is no pleural effusion , pneumothorax or focal airspace consolidation . Heart is normal size . There is no evidence for pulmonary edema . The mediastinal and hilar structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process with low lung volumes .