Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged , as before . A dual - lead pacemaker / ICD device appears in a similar configuration . Mild unfolding and calcification involving the thoracic aorta appears similar . The mediastinal and hilar contours appear unchanged . The lung volumes are low . Patchy bibasilar opacities are nonspecific as to etiology and appear slightly decreased within the left lower lobe . Interstitial pulmonary edema has also improved . There is a small right - sided pleural effusion that appears increased with blunting of the left posterior costophrenic sulcus that may reflect a tiny effusion which is unchanged . Degenerative changes along the thoracic spine are similar .
    OUTPUT:
    
Improvement in interstitial edema and bibasilar opacities . Small but apparently increased right - sided pleural effusion .