Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The overall appearance is similar . No obvious pneumothorax is detected in either lung . Again seen is the right - sided chest tube with opacification at the right lung base , presumably a small to moderate right pleural effusion with underlying atelectasis and probable elevation of the right hemidiaphragm . Right paratracheal opacity is unchanged . There is continued vascular plethora . Aside from minimal basilar atelectasis and a small left effusion , left lung remains grossly clear . Cardiomediastinal silhouette is prominent , but unchanged . Linear density previously seen over the right lung , question epidural catheter , is no longer visualized .
    OUTPUT:
    
Overall appearance similar to the film from 1 day earlier . No pneumothorax identified .