Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate , bilateral pleural effusions and right basal atelectasis and / or pneumonia , are improved since ___ . Biapical scarring is chronic . The heart size is top normal and there is no edema or vascular abnormality . The aortic valve position is more inferior than expected , probably because of surgery to the aortic root . There is no pneumothorax . The preoperative orientation of the right atrial lead , directed posteriorly , and probably abuting the interatrial septum , is unchanged .
    OUTPUT:
    
1 . Moderate bilateral pleural effusions and right basal atectasis / pneumonia , improving . 2 . Longstanding RA pacer lead probably abuts interatrial septum .