Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the chest radiograph obtained 1 day prior , no significant changes are appreciated . Bilateral , diffuse , reticular opacities are unchanged in extent , distribution , and severity . No new parenchymal opacities . Heart size is top - normal . Cardiomediastinal and hilar silhouettes are somewhat obscured by the pre-existing parenchymal opacities , but appear normal . Support devices and lines are unchanged in position .
    OUTPUT:
    
Diffuse , reticular , parenchymal opacities appear unchanged in extent , severity , distribution . No new abnormalities .