Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new endotracheal tube with tip in the right mainstem bronchus . At the time of dictation this report on ___ at 10 :25 a .m . the ET tube had already been withdrawn and was in a more appropriate position . There is moderate cardiomegaly right lower lung volume loss left retrocardiac opacity and pulmonary vascular redistribution .
    OUTPUT:
    
Right mainstem bronchus intubation .