Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The gastric band is positioned at an appropriate angle but projects immediately above the medial left hemidiaphragm . The heart is at the upper limits of normal size . The mediastinal and hilar contours appear within normal limits . The lungs appear clear . There are no pleural effusions or pneumothorax . No free air is identified .
    OUTPUT:
    
Somewhat high - riding gastric band which may indicate that the band is situated in a hiatal hernia ; the orientation angle appears within normal limits . No evidence of acute cardiopulmonary disease or free air .