Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left pneumonectomy . Tiny right apical pneumothorax , more apparent compared with the radiograph , similar compared with CT from this evening . More prominent interstitial pattern , suggestion of nodularity in the right costophrenic angle , and right apex , suggests inflammatory or infectious process . Single right chest tube . Improved subcutaneous emphysema .
    OUTPUT:
    
Tiny right pneumothorax , as seen on CT today