Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Mediastinal and hilar contours are normal . The pulmonary vascularity is normal . There is minimal streaky opacity within the left lower lobe , likely reflective of atelectasis . Blunting of the left costophrenic angle on the lateral view posteriorly suggests a small left pleural effusion . No right - sided pleural effusion or pneumothorax is definitively seen . There are mildly displaced fractures of the left lateral ___ and likely 9th ribs .
    OUTPUT:
    
Mildly displaced fractures of the left ___ and likely ___ lateral ribs . Mild left lower lobe atelectasis and probable trace left pleural effusion .