Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . Minimal streaky opacities seen within the retrocardiac region likely reflect atelectasis . No acute osseous abnormalities seen .
    OUTPUT:
    
No radiographic evidence for pneumonia .