Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged , particularly at the left atrium , but stable . The hilar contours are within normal limits . Lungs are well expanded and clear . There is no focal consolidation , pleural effusion or pneumothorax . Nipple shadows should not be mistaken for pulmonary nodules . Deformity of the left lower ribs is likely secondary to prior surgery . Surgical clips project over the mid upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process .