Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . Left greater than right bibasilar opacities are seen , which could relate to atelectasis or aspiration , although underlying pneumonia is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Bibasilar opacities , more so on the left , could relate to atelectasis or / and aspiration , although underlying pneumonia is not excluded in the appropriate clinical setting .