Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded , with no focal opacities concerning for pneumonia . There is engorgement of the superior vena cava and azygos vein , as well as right atrial enlargement suggestive of fluid overload . Mild to moderate cardiomegaly is present . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right atrial enlargement and engorgement of the superior vena cava and azygos vein is compatible with fluid overload . No evidence of pneumonia .