Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Vertebral stabilization devices and midline surgical clips are redemonstrated , obscuring fine detail . There has been interval removal of the endotracheal and esophageal tubes . The right - sided subclavian line ends at the cavoatrial junction , unchanged . A layered left sided effusion is again seen with some fluid tracking along the minor fissure . The overall decrease in right hemithorax opacification may be secondary to decreased effusion versus different patient obliquity during imaging . A mild hazinness of the left lower lung field is suggestive of a small layering left sided effusion . A dense retrocardiac opacity represents postoperative atelectasis , unchanged . There are no focal pulmonary opacities concerning for pneumonia . There is no pneumothorax . Of note , there is increased widening of the upper and mid mediastinum along its right margin . Cardiac contour is stable .
    OUTPUT:
    
1 . Increased widening of the upper and mid mediastinum along its right margin may represent paraspinal hemorrhage . Further assessment with CT is recommended . 2 . Interval removal of endotracheal and nasogastric tube . Spinal stabilization devices , surgical clips , and left subclavian line are unchanged . 3 . Layered right sided pleural effusion might be improved . A small layering left sided effusion is present . 4 . Stable left lower lobe atelectasis . These findings were communicated to Dr ___ by Dr ___ on ___ at 11 am via telephone immediately after discovery .