Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC terminates in the mid SVC without evidence of pneumothorax . There are trace bilateral pleural effusions with overlying atelectasis . Large retrocardiac opacity most likely represents a hiatal hernia with adjacent atelectasis . The aorta is calcified and tortuous . The cardiac silhouette is top - normal to mildly enlarged .
    OUTPUT:
    
Right PICC terminates in the mid SVC without definite pneumothorax seen . Small bilateral pleural effusions . Large rounded retrocardiac opacity most likely represents hiatal hernia with adjacent atelectasis .