Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly with biatrial enlargement , stable since the prior study . The mediastinal and hilar contours remain unchanged . The patient has median sternotomy wires and is status post aortic valve replacement . There is no pleural effusion or pneumothorax . There are increased pulmonary markings throughout the right lung field , which is likely related to patient rotation . There is no focal consolidation concerning for pneumonia .
    OUTPUT:
    
No acute cardiopulmonary process .