Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single upright AP view of the chest . The new right IJ central line terminates in the mid SVC . The lungs are well expanded . Bibasilar atelectasis is again seen , similar prior exam . The previously seen retrocardiac opacity has significantly improved from prior exam , consistent with resolving atelectasis . No large pleural effusion or pneumothorax is seen . Cardiomediastinal silhouette is mildly enlarged , but there is no evidence acute decompensation or edema . Aneurymal dilation of the aorta is noted .
    OUTPUT:
    
1 . New right IJ central line terminates in the mid SVC . 2 . Previously seen retrocardiac opacity has significantly improved from prior exam , consistent with resolving atelectasis .