Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No visualized pneumothorax is seen , and right subcutaneous air is seen . Left basilar atelectasis with hemidiaphragm elevation continues to be seen , and blunting of the left costophrenic angle with possible pleural effusion . A gas bubble is seen adjacent to the right heart border which may represent a diaphragmatic hernia . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
No pneumothorax is visualized .