Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is unchanged . Mediastinal and hilar contours are similar with mild pulmonary edema noted . There is no large pleural effusion or pneumothorax with scarring seen in the lung apices , unchanged . Minimal atelectasis is noted at the lung bases . Multiple chronic left - sided rib fractures and left scapular fracture are again noted , without acute osseous abnormality .
    OUTPUT:
    
Mild pulmonary edema and bibasilar atelectasis .