Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Linear atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .