Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left PICC ends at the cavoatrial junction in unchanged position . Focal poorly defined opacity in the right mid lung is new compared to ___ . No pleural effusion or pneumothorax . Normal heart size , mediastinal and hilar contours .
    OUTPUT:
    
1 . Left PICC ends at the cavoatrial junction , in unchanged position . 2 . New right mid lung opacity , which may reflect atelectasis or focal pneumonia .