Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior exam , new right - sided chest tube is present with the tip in the medial mid lung zone . Some subcutaneous air is noted in the right chest wall . The lung volumes are lower with patchy interstitial opacities , likely from mild edema . A more focal opacity in the left mid lung zone is present . There is no definite pleural effusion or pneumothorax . The mediastinal contours are normal . The heart size is mildly enlarged and unchanged .
    OUTPUT:
    
1 . New mild pulmonary edema . 2 . Focal right mid lung zone opacity , which is nonspecific , and may be focal atelectasis , though a small amount of hemorrhage or a developing infection is a consideration . 3 . Satisfactory position of the chest tubes . No pneumothorax .