Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is within normal limits . The pulmonary vasculature is normal . There are bibasilar opacities . There may be a small right - sided pleural effusion . There is no evidence of pneumothorax .
    OUTPUT:
    
Multifocal pneumonia . Possible small right - sided effusion .