Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates complete opacification of the left hemi thorax , consistent with massive left - sided pleural effusion and left lung collapse . There is a large right - sided pleural effusion with adjacent atelectasis as well . No pneumothorax . Assessment of the cardiac silhouette is not possible secondary to pleural effusion . Moderate - sized hiatal hernia is present .
    OUTPUT:
    
Complete opacification of the left hemi-thorax consistent with a massive left pleural effusion and left lung collapse . Large right - sided pleural effusion with adjacent atelectasis .