Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are within normal limits . The pulmonary vasculature is normal . Aeration of the lungs has markedly improved compared to the previous study . Patchy atelectasis is seen in the lung bases without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities detected .
    OUTPUT:
    
Minimal atelectasis in the lung bases . No focal consolidation to suggest pneumonia .