Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the chest x-ray from ___ , there has been partial interval clearing of the retrocardiac opacity . Faint patchy opacity in the right cardiophrenic region is no longer visible . There is upper zone redistribution , without other evidence of CHF . The cardiomediastinal silhouette is probably unchanged . There is a new right subclavian PICC line . The tip is not well visualized . A can not be traced beyond the expected site of confluence of the subclavian and innominate veins , in the region of the proximal most SVC . No pneumothorax detected .
    OUTPUT:
    
1 . New right PICC line . Tip not well visualized --? At Level of proximal - most SVC . The possibility that it extends slightly beyond this can not be excluded . 2 . Partial interval clearing of retrocardiac opacity and resolution of right cardiophrenic region patchy opacity .