Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are stable . The increased opacification of left lower lobe ( representing a combination of the patient 's known malignancy , pleural thickening , pleural effusion and atelectasis ) are stable from the prior study . The right lung is clear of acute focal process ; however , changes related to the patient 's right upper lobectomy are present as well as vague lower lung opacity compatible with known nodule . There is no evidence of pneumothorax or pulmonary edema .
    OUTPUT:
    
No evidence of acute process . Chronic changes related to the patient 's LLL mass as above .