Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , accentuating the pulmonary vasculature . There is no overt pulmonary edema . There is no focal consolidation . There is no pleural effusion . The heart size is top - normal . There is mild S shaped curvature of the spine .
    OUTPUT:
    
No acute cardiopulmonary process . No pneumothorax .