Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . The lungs are clear without focal consolidation . Previously noted bibasilar airspace opacities have resolved . No pleural effusion or pneumothorax is identified although the right costophrenic sulcus is not completely imaged on this exam . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .