Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The lungs are well expanded . Note is made of prominent interstitial pulmonary markings , however there is no focal consolidation , pleural effusion or pneumothorax . Incidental note is made of an azygos fissure .
    OUTPUT:
    
No acute cardiopulmonary process .