Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . Moderate unfolding of the thoracic aorta appears similar . The mediastinal and hilar contours appear unchanged . There is similar flattening of the hemidiaphragms with an expanded anteroposterior dimension of the chest , consistent overall with hyperinflation . There is no evidence for pleural effusion or pneumothorax . The lungs appear clear . In the upper abdomen , nonspecific air - fluid levels are visualized , fully characterized .
    OUTPUT:
    
Hyperinflation . No evidence of acute cardiopulmonary disease . Air-fluid levels visualized along bowel in the epigastrium , not fully characterized . Clinical correlation is suggested .