Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change compared to ___ . The patient is status post right upper lobe lobectomy with unchanged right apical air collection and diffuse subcutaneous air collections . A right - sided chest tube is in standard position . There are stable bilateral areas of atelectasis at the lung bases . There is slightly increased left sided mediastinal shift compared to the prior examination which likely reflects a combination of stable right apical air collection but slightly increased left pleural lower lobe atelectasis compared to the prior examination .
    OUTPUT:
    
1 . Stable right apical air collection . 2 . Minimally increased left sided mediastinal shift compared to the prior examination which likely reflects a combination of stable right apical air collection but slightly increased left pleural lower lobe atelectasis compared to the prior examination . No significant change compared to the most recent prior examination of ___ with stable appearance of right pneumothorax .