Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been slight interval increase in size of bilateral pleural effusions which are now moderate to large . There is mild interstitial pulmonary edema again noted . The heart size remains enlarged , the mediastinal contours are normal with note of calcification of the aortic knob . A left chest pacemaker is stable in position .
    OUTPUT:
    
CHF , with slight interval increase in size of bilateral pleural effusions , now moderate to large .