Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ETT tip is approximately 3 cm from the carina . The film has the appearance of a more apical lordotic technique . The contours of the left hemidiaphragm are not clearly defined and there is a retrocardiac opacity . These could reflect atelectasis although infection can not be excluded . No pneumothorax . The heart is mildly enlarged . Aortic knob is calcified . Patient is status post median sternotomy and several of the sternotomy wires are fractured . A partially visualized enteric tube traverses the hemidiaphragm into the left upper quadrant but its tip is beyond the scope of this imaging . Several radio - opaque surgical material projects just to the left of the thoracic spine in the mediastinum .
    OUTPUT:
    
1 . ETT approximately 3 cm from carina . 2 . Retrocardiac opacity with indistinctness of the left hemidiaphragm could reflect atelectasis or aspiration / infection in the appropriate clinical situation . 3 . Tilted and fractured median sternotomy wires raises concern of unstable sternum . Correlate with clinical assessment .