Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate left pleural effusion with adjacent atelectasis appears modestly improved from the prior examination . The right lung and left upper lung are clear without lobar consolidation or pneumothorax . Azygos fissure is incidentally noted . There is no frank pulmonary edema . The cardiomediastinal silhouette is unchanged . Median sternotomy wires are intact and well aligned .
    OUTPUT:
    
Perhaps minimally improved moderate left pleural effusion . Otherwise , no significant change from ___ .