Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs appear clear . No focal consolidation , effusion , or pneumothorax is seen . Retrocardiac opacity with an air - fluid level is compatible with a hiatal hernia . Heart and mediastinal contours appear normal . Slight deformity of the right eighth and ninth posterior ribs could represent minimally displaced fractures . Please correlate for focal pain in this region . Otherwise , no definite osseous abnormalities are seen .
    OUTPUT:
    
Possible right eighth and ninth posterior rib fractures . Correlate for acuity . Retrocardiac opacity compatible with hiatal hernia .