Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is somewhat rotated in this examination . A tracheostomy tube is seen well positioned in the trachea . Left subclavian catheter extends to the mid portion of the SVC . Enteric tube courses below the diaphragm , the tip is not included in this examination . Allowing for positional changes , cardiomediastinal and hilar contours appear normal . No definite pleural effusions or pneumothorax . Lower lung volumes exaggerate interstitial abnormalities present at lung bases , likely representative of fibrosis and alveolitis which is fully characterized on prior chest CT from ___ .
    OUTPUT:
    
Lower lung volumes exaggerate interstitial abnormalities present at lung bases . No new focal consolidations are identified .