Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no focal consolidation or pneumothorax . There is no vascular congestion or pulmonary edema . No pleural effusion is evident . Mediastinal and hilar contours are within normal limits . The heart size is top normal , though similar compared to prior examination .
    OUTPUT:
    
No acute cardiopulmonary process . No pulmonary edema .