Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bibasilar opacities have resolved . There is no pleural effusion . There is no new area of consolidation . Cardiomediastinal silhouette , pulmonary vasculature , and aorta are within normal limits . There is no pneumothorax . Rounded midline opacity over the lower thoracic spine on PA projection may be secondary to hiatus hernia .
    OUTPUT:
    
1 . Resolution of bibasilar pneumonia . 2 . Suggestion of small hiatus hernia .