Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Clips in the right hilus are compatible with prior right upper lobectomy . After chest tube removal , there is no new pneumothorax . There is either fluid at the apices . Some rightward mediastinal shift is expected after lobectomy . No pleural effusion . Decrease in subcutaneous emphysema . Left basilar atelectasis is stable . No focal parenchymal opacities concerning for pneumonia .
    OUTPUT:
    
No pneumothorax . Stable postoperative changes .