Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . An endotracheal tube is seen with its tip residing 4 .2 cm above the carinal . The orogastric tube extends into the left upper quadrant with the tip residing in the expected region of the gastric fundus . Coarsened reticular markings with a lower lobe predominant pattern suggests interstitial fibrosis . The heart is mildly enlarged . Blunted right CP angle may reflect pleural thickening . No supine evidence for pneumothorax . The mediastinal contour appears grossly unremarkable . No acute fractures are identified .
    OUTPUT:
    
ET and OG tubes positioned appropriately . Coarsened lung markings concerning for pulmonary fibrosis .