Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mass in the medial aspect of the right lower lobe appears slightly decreased in size . Right - sided pleural effusion is essentially unchanged in size . Interstitial thickening involving the right mid and lower lung zones is slightly increased . Right apical pleural thickening is unchanged . Right - sided prepectoral Port - A - Cath in situ with the tip in the proximal right atrium . Cardiomediastinal shadow is unchanged . Unfolding of the thoracic aorta . No left - sided pleural effusion . Surgical material in situ in the left lung . Background hyperinflation .
    OUTPUT:
    
Interval decrease in size of the mass in the medial aspect of the right lower lobe . Right - sided effusion is unchanged . Interstitial thickening in the right mid and lower lung zones slightly increased . The left - sided pleural effusion has resolved .