Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable semi-erect frontal chest radiograph demonstrates endotracheal tube in appropriate position , 5 cm above the level of the carina . A right subclavian CVL tip is in the lower SVC . The lungs are well inflated . A persistent right lower lobe opacity is present . Stable small left pleural effusion . No right pleural effusion . No pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment upper abdomen is within normal limits .
    OUTPUT:
    
1 . Endotracheal tube in appropriate position . Additional support line as described above . 2 . Persistent right lower lobe opacity is worrisome for pneumonia , or aspiration pneumonia . 3 . Stable small left pleural effusion .