Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs clear , without focal consolidation to suggest pneumonia . There is subsegmental atelectasis seen within the let lower lung . There is no pneumothorax . There is likely a small right subpulmonic pleural effusion . The heart size is normal . Calcifications are seen within the aortic arch .
    OUTPUT:
    
No acute cardiopulmonary process .