Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well inflated and clear . The cardiac silhouette is mildly enlarged . There is no pleural effusion or pneumothorax . Visualized upper abdomen is unremarkable . Median sternotomy wires and surgical clips project over the mediastinum . Surgical clips are also seen in the upper abdomen . Calcifications of the aortic arch is noted .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Mild cardiomegaly .