Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right lower lobe opacity , best seen on the lateral radiograph , is concerning for aspiration or infection . There is no pleural effusion or pneumothorax . The heart is normal in size , and there is no pulmonary edema .
    OUTPUT:
    
Right lower lobe opacity , best seen on the lateral radiograph , concerning for aspiration or infection .