Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual lead pacemaker / ICD device appears unchanged . Left - sided abandoned pacer wires are also similar . Cardiac enlargement , as well as the mediastinal and hilar contours appear similar . Indistinct upper zone redistribution of pulmonary vasculature and perihilar fullness is somewhat increased suggesting mild - to - moderate interstitial pulmonary edema . Mild elevation of the right hemidiaphragm is similar . There is no definite pleural effusion or pneumothorax . Degenerative changes along the lower and mid thoracic spines are similar . No free air is demonstrated .
    OUTPUT:
    
1 . No evidence for free air . 2 . Findings suggesting mild - to - moderate vascular congestion .