Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable upright view of the chest again demonstrates unchanged cardiomegaly . Prominence along the right mediastinal border is unchanged dating back to at least ___ reflecting left atrial enlargement . The main pulmonary artery contour is also enlarged , as before . The well - expanded lungs are clear without pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence acute cardiopulmonary process . Unchanged cardiomegaly .