Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Very small apical left pneumothorax measuring less than 2 mm and left pigtail are stable . Stable mild - to - moderate left pleural effusion and severe right pleural effusion that are difficult to assess due to the breast prosthesis . Right - sided Port - A - Cath ends in cavoatrial junction . The mediastinal and cardiac contours are normal . Mediastinal calcified lymph nodes and post-radiation change in the right upper lobe are unchanged .
    OUTPUT:
    
1 . Very small , left apical pneumothorax , stable . 2 . Bilateral unchanged pleural effusion , mild to moderate on the left and severe on the right side .