Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pleural effusion , pneumothorax or focal airspace consolidations . The heart is mildly to moderately enlarged but unchanged . There is no evidence for pulmonary edema . The mediastinal and hilar structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .