Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild streaky right base opacity could be due to atelectasis but infection or aspiration is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable and stable .
    OUTPUT:
    
Slight streaky right base opacity could be due to atelectasis , but infection or aspiration or not excluded in the appropriate clinical setting .