Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs appear clear . There has been interval resolution of prior right basilar opacity . No confluent opacity is identified . There is mild prominence of the central pulmonary vasculature , though no overt interstitial edema . No large pleural effusion is evident . There is no pneumothorax or pneumomediastinum . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process