Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left apical chest tube remains in place . A left subclavian central venous catheter terminates at the cavoatrial junction . There is no appreciable pneumothorax . Left - sided volume loss with elevation of the left hemidiaphragm is stable . The mediastinal contour appears slightly wider today . The thoracic aorta is tortuous . Moderate cardiomegaly despite the projection is unchanged . The lungs are grossly clear . No radiopaque foreign body is identified .
    OUTPUT:
    
Slightly increased mediastinal widening may be due to a combination of in cord mediastinal vessels and atelectasis , but a contrast - enhanced chest CT may be obtained to exclude a mediastinal hematoma .