Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes accounting for some bronchovascular crowding . Bibasilar opacities likely represent atelectasis . No other focal opacities are seen . Blunting of the left costophrenic angle is secondary to a prominent epicardial fat pad that is better seen in subsequent CT . There is no pleural effusion or pneumothorax . There is no evidence of abdominal free air . A tortuous aorta is present . The cardiomediastinal contour is unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .