Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New right IJ central venous catheter ends in the low SVC . No pneumothorax . Endotracheal tube appropriately positioned . Appearance of the lungs with diffuse predominantly centralized alveolar opacity has not largely changed from a few hours prior . Mild cardiomegaly is also stable .
    OUTPUT:
    
1 . Right IJ central venous catheter ends in the low SVC . No pneumothorax . 2 . Persistent alveolar opacity in a bat wing distribution , most consistent with severe pulmonary edema .