Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is seen with tip approximately 8 .2 cm from the carina . Diffuse bilateral parenchymal opacities are again noted , most dense in the left mid lung and in the retrocardiac region silhouette the descending thoracic aorta , new from prior . Cardiac silhouette is enlarged likely exaggerated by portable technique and low lung volumes . No acute osseous abnormalities .
    OUTPUT:
    
1 . ET tube tip 8 .2 cm from the carinal and should be advanced several cm . 2 . Diffuse bilateral parenchymal opacities , potentially due to pulmonary edema , bilateral infection or ARDS .