Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged with a left ventricular configuration . The aortic arch is partly calcified and mildly tortuous . The mediastinal and hilar contours appear unchanged . The lungs appear clear . There are no pleural effusions or pneumothorax . A prior right posterolateral sixth rib fracture is not visible on the prior study but appears old . Surgical clips project about the region of the gastroesophageal junction , predominantly beneath the level of the left hemidiaphragm . Mild degenerative changes appear similar along the thoracic spine .
    OUTPUT:
    
No evidence of acute disease . Mild cardiomegaly . Surgical clips projecting along the gastroesophageal junction .