Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pneumothorax . Median sternotomy wires are intact and tunneled dialysis catheter ends in the right atrium . There is a small left effusion which is unchanged from comparison study . There is mild cardiomegaly . There is no mediastinal shift , pneumothorax , or consolidation .
    OUTPUT:
    
Small left effusion from chest xray ___ and mild cardiomegaly .