Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are very low , with resultant crowding of the bronchovascular structures . There is no discrete consolidation identified . Additionally , there is no evidence of pleural effusion , pneumothorax , or pulmonary edema . The heart size is top normal . No acute bony abnormality is detected .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .