Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The heart size and cardiomediastinal contours are normal . The aorta appears to have a normal course and caliber . The left hemidiaphragm is asymmetrically elevated as before , with left base atelectasis . No focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .