Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Mild elevation of the left hemidiaphragm is present secondary to a distended gastric fundus .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Distended gastric fundus causing mild elevation of the left hemidiaphragm raises question of slow gastric output .