Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , pulmonary edema or pleural effusion . No pneumothorax is present . Elevation of the left hemidiaphragm , presumably dating from left thoracotomy and posterior rib resection is unchanged . Surgical clips project over the left upper abdomen .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .