Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Airspace opacities are noted within the left mid and lower lung , suggestive of multifocal pneumonia ; atelectasis due to pulmonary embolus is less likely . There is no large pleural effusion or pneumothorax identified . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Although multi focal peribronchial infiltration is more likely inflammatory , chronic pulmonary emboli could leave this kind of scarring .