Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP film . The ET tube lies about 4 cm with chronic good position . The lung parenchyma is grossly unchanged . Near complete silhouetting of the left hemidiaphragm less suggests a significant There is suggestion of a nodule in the left mid lung . , possibly related to consulate shadowing but attention on followup is suggested A left sided effusion in particular is slightly larger than before .
    OUTPUT:
    
ET tube appears in good position .