Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph demonstrates small bilateral pleural effusions . The heart size is top normal despite biatrial enlargement . The pulmonary vasculature appears normal . There is no focal consolidation or pneumothorax . The pulmonary vasculature is normal . Median sternotomy wires and multiple surgical clips project over the mediastinum .
    OUTPUT:
    
Top normal heart size despite biatrial enlargement . The pulmonary vasculature appears normal , although there are small bilateral pleural effusions .