Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Extremely low lung volumes are noted . Endotracheal tube is within 1 cm of the carina and should be withdrawn . Enteric tube passes below the inferior field of view . Median sternotomy wires and mediastinal clips are identified . There is focal opacity at the left costophrenic angle , potentially atelectasis given low lung volumes , although infection would also be possible or potentially effusion .
    OUTPUT:
    
Endotracheal tube within 1 cm of the carina and should be withdrawn . Findings discussed with Dr . ___ was paged at 10 :40 p .m . on ___ .