Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates a persistent right apical pneumothorax , now measuring approximately 9 mm , minimally decreased in size since the most recent comparison . There is no left - sided pneumothorax . Bilateral hazy opacities are again seen , worse on the right than on the left , unchanged since the examination from several hours prior , and most consistent with asymmetric edema . Likely bilateral pleural effusions are present . Subcutaneous emphysema is persistent .
    OUTPUT:
    
No appreciable change from exam from 3 hours prior .