Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained portably . There is a retrocardiac opacity containing an air - fluid level consistent with known hiatal hernia . There is a vague nodular opacity projecting over the right upper lung which is new from the prior ___ exam . This nodule measures approximately ___ mm and requires CT of the chest to further assess . No signs of pneumonia or edema . No large effusion or pneumothorax . Bony structures are intact .
    OUTPUT:
    
1 . ___ mm nodular opacity projecting over the right upper lung appears new from ___ and requires CT to further assess . 2 . Large hiatal hernia again seen .