Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP view of the chest provided . 3 images provided during serial retraction of the endotracheal tube . On the final image of the series , endotracheal tube tip is well positioned 3 .8 cm above the carina . An orogastric tube extends into the left upper abdomen in the expected location of the stomach . There is a 4 .2 x 5 .5 cm rounded opacity in the right upper lung , new from prior exam , concerning for mass lesion though given that this finding is new from prior exam , the possibility of infection or aspiration can not be excluded . Followup to resolution advised . Left basilar atelectasis noted . No pneumothorax or pleural effusion . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Adequate position of the ET tube on the third image of the series . NG tube positioned appropriately . Rounded opacity in the right upper lung which is concerning for mass lesion versus infection / aspiration . Followup to resolution is advised .