Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube resides within the left main stem bronchus , advanced compared with ___ . Right IJ , and left subclavian central venous catheter positions are unchanged . An NG tube is seen within the stomach . There is chronic right upper lobe collapse . Predominantly central airspace opacity has progressed compared with prior , there is no pleural effusion , the cardiac silhouette remains normal in size , the mediastinal contours are normal .
    OUTPUT:
    
1 . Interval placement of endotracheal tube in the left main stem bronchus , no right main component is seen . There is chronic right upper lobe collapse . 2 . Confluent predominantly central airspace opacity , consistent with this patient 's history of hemoptysis . Findings were discussed with Dr . ___ at 11 : 10 a .m . by phone .