Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . As shown on previous chest examination , pulmonary vasculature with increased basal translucency coinciding with low positioned and flattened diaphragms is consistent with chronic COPD . Comparison with the next preceding study , there are two thin peripheral plate atelectasis on the right base which were not present to the same extent on the previous examination . No other acute parenchymal infiltrates can be identified . No pneumothorax has developed . Previously described right - sided Port - A - Cath system introduced via the right internal jugular vein approach remains in unchanged position terminating in the lower SVC . No pneumothorax has developed .
    OUTPUT:
    
Rather advanced COPD as before , thin plate atelectasis on right base but no new acute infiltrates . No pneumothorax .