Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal image of the chest was obtained . Again seen is a partially collapsed right lung with increased density at the inferior border of the lung , consistent with pleural effusion versus pleural thickening . Below the inferior border of the right lung is again seen a hydropneumothorax with an air - fluid level . There again appear to be some small opacities within the partially collapsed right lung . The left lung is seen again to be clear . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Unchanged chest radiograph from previous imaging .