Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral low lung volumes . Crowding of vessels may be exaggerated by low lung volumes . Cardiac silhouette can be exaggerated by low lung volumes . There is no pneumothorax . Small left pleural effusion probable . Consider repeat radiographs with improved inspiratory volumes to evaluate the right lung base .
    OUTPUT:
    
Bilateral low lung volumes with large hiatal hernia . Cardio vasculature likely exaggerated by low lung volumes . To further evaluate the right lung base , consider repeat radiographs with better inspiration .