Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . Streaky right basilar , and left mid lung opacities secondary to atelectasis , are overall unchanged compared to the prior exam . Retrocardiac opacity , well seen on the lateral view is new compared to the prior exam . Small right pleural effusion has increased compared to the prior exam . There is no pneumothorax . Visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . New retrocardiac opacity may be atelectasis or pneumonia . If radiologic confirmation is required for management , a repeat lateral radiograph at deeper inspiration and an ___ view would need to be obtained . 2 . Slight interval increase in the small right pleural effusion compared to the prior exam from ___ . Updated recommendation was discussed with Dr . ___ by Dr . ___ by telephone at 7 : ___a on ___ .