Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs are hyperinflated but clear of consolidation or definite effusion . Opacity at the right lung base medially on the frontal view is likely due to a hiatal hernia seen on prior CT scan . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . No definite displaced fracture is identified .
    OUTPUT:
    
Hyperinflation without definite acute cardiopulmonary process .