Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is enlargement of the cardiac silhouette , compatible with mild cardiomegaly . The bilateral hila are within normal limits . There is no pulmonary vascular congestion . The lungs are clear . There is no pneumothorax or effusion . A right shoulder tunneled screw is noted .
    OUTPUT:
    
No acute cardiopulmonary process . Mild cardiomegaly .