Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pneumothorax or large pleural effusion . Elevation of the right hemidiaphragm is again seen , with right basilar atelectasis . Heterogeneous left basilar opacities are noted , which may are present atelectasis , aspiration , or infectious process . Evidence of right rotator cuff repair is noted . The upper abdomen is unremarkable .
    OUTPUT:
    
Left basilar opacity , which may represent atelectasis , aspiration or pneumonia . A dedicated PA and lateral view of the chest would be helpful for further evaluation .