Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 3 cm from the carina . Left internal jugular central venous catheter tip appears to terminate at the confluence of the brachiocephalic veins . The patient is status post median sternotomy and CABG . The 2 upper most sternotomy wires are fractured , and the 2 most inferior sternotomy wires are deviated to the left of midline compared to the remainder of the sternotomy wires . Lung volumes are low . The heart size is mildly enlarged . The mediastinum superiorly appears somewhat widened , but this may be due to low lung volumes and supine technique . There is crowding of the bronchovascular structures with probable mild pulmonary vascular congestion . Streaky bibasilar airspace opacities may reflect atelectasis , though infection can not be excluded . There is no pneumothorax seen .
    OUTPUT:
    
1 . Endotracheal tube tip is in standard position . Left internal jugular central venous catheter tip terminates at the confluence of the brachiocephalic veins . 2 . Low lung volumes with streaky bibasilar airspace opacities likely reflecting atelectasis though infection can not be excluded . Mild pulmonary vascular congestion . 3 . Fracture of the two most superior sternotomy wires , with leftward displacement of the two most inferior sternotomy wires relative to the remaining sternotomy wires . This could suggest sternal dehiscence in the correct clinical setting , and clinical correlation is recommended .