Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest is reviewed . There is a right - sided chest tube with tip terminating in the lung apex . There is subcutaneous edema near the entry site of the chest tube . There is elevation of the right hemidiaphragm , which appears worsened compared to the prior study . There is a small right effusion with bibasilar opacities , more pronounced on the right . The cardiomediastinal and hilar contours are unremarkable . No pneumothorax grossly detected . No displaced fractures noted .
    OUTPUT:
    
Small right pleural effusion with bibasilar opacities , possibly atelectasis , though aspiration or contusion is not excluded . No pneumothorax grossly detected .