Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no significant change in appearance of the thorax compared with prior radiograph from ___ . There is persistent marked elevation of the right hemidiaphragm with overlying atelectasis . Left mid lung opacity in a relative linear configuration is seen , unchanged from prior radiograph . This opacity was also seen on prior chest CT 's dating back to ___ . There is no pleural effusion or pneumothorax . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Persistent marked elevation of the right hemidiaphragm with overlying atelectasis . Stable left mid zone opacity may represent scarring versus a focus of organizing pneumonia given long - term stability .