Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 3 .4 cm from the carina . An enteric tube tip courses through the stomach , off the inferior borders of the film . Heart size is top normal . Mediastinal and hilar contours unremarkable . Diffuse ill - defined alveolar opacities are noted bilaterally . No large pleural effusion or pneumothorax is identified on this supine exam however the right costophrenic angle is excluded from the field of view . No acute osseous abnormality is visualized .
    OUTPUT:
    
1 . Standard positioning of the endotracheal and enteric tubes . 2 . Diffuse alveolar opacities which may reflect ARDS .