Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates within the proximal right mainstem bronchus . Enteric tube tip and side - port are within the stomach . Heart size is normal . Mediastinal contours are unremarkable . Opacity within the left lung base may reflect atelectasis , pneumonia or aspiration . There is crowding of the bronchovascular structures due to low lung volumes . Peribronchial cuffing suggests airway inflammation . No pleural effusion or pneumothorax is demonstrated .
    OUTPUT:
    
1 . Right mainstem bronchial intubation . Standard position of the enteric tube . 2 . Left basilar opacity may reflect atelectasis , pneumonia or aspiration . Peribronchial cuffing suggests airway inflammation .