Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest wall pacer - defibrillator has leads terminating in the right atrium and right ventricle . Median sternotomy wires appear grossly intact . The lung volumes are low . There are moderate bilateral pleural effusions . The heart is moderately enlarged , similar to prior studies . There is mild - to - moderate pulmonary edema . There is no pneumothorax . Inferior displacement of the minor fissure suggests some volume loss in the middle lobe .
    OUTPUT:
    
1 . Moderate bilateral pleural effusions are increased . 2 . Moderate cardiomegaly and mild - to - moderate interstitial pulmonary edema . 3 . Partial collapse of the right middle lobe .