Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there is a persistent moderate right pneumothorax . The apical component has slightly improved . The basilar portion of the pneumothorax is now occupied by a new fluid component ; it does not however demonstrate the classic air fluid level required for a hydropneumothorax . Right chest tubes are in unchanged position . There is an increased opacity at the right lung base which may be related to reexpansion edema , atelectasis or an early infectious process . Small amount of subcutaneous air is seen in the lateral chest wall on the right . The left lung remains clear and the cardiomediastinal contours are normal .
    OUTPUT:
    
Moderate right pneumothorax with slight improvement of its apical component , basilar portion is now occupied by a new fluid component .