Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show appropriate inspiratory lung volumes . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is mildly enlarged but stable . Prominence of the azygos vein is also unchanged . The mediastinal and hilar contours are otherwise within normal limits .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable mild cardiomegaly .