Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse interstitial opacities with bronchiectasis and bronchial wall thickening more prominent in the lung bases appear similar to prior examination . Additionally , lungs remain severely hyperinflated likely related to underlying obstructive pulmonary disease . Previously seen opacification in the retrocardiac region appears improved from prior . However , there is a persistent opacity and a small left pleural effusion . Septal thickening is re-demonstrated , however , appears similar to multiple prior examinations and may be due to chronic edema or chronic parenchymal lung disease . No definite new opacity is identified to suggest acute pneumonia or aspiration . No pneumothorax is evident . Cervical spinal hardware is partially imaged and appears within normal limits . Cardiomediastinal and hilar contours are unremarkable .
    OUTPUT:
    
1 . Bronchiectasis and bronchial wall thickening with underlying emphysematous changes , similar to prior . 2 . Prominent interstitial opacities and septal thickening which may be due to chronic superimposed mild edema or related to underlying chronic lung disease . 3 . Improved aeration of the left lung base though with a persistent opacity and a small left pleural effusion . 4 . No convincing evidence of new consolidation to suggest interval aspiration or pneumonia .