Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac contours are not well delineated , but the heart is probably mild to moderately enlarged . The lung volumes are low . Streaky right basilar opacity suggests minor atelectasis . There is more extensive but vague left lower lung opacity ; a pleural effusion is suspected on the left but not well demonstrated . There is no pneumothorax . An endotracheal tube terminates below the thoracic inlet about 6 cm above the carina , and an orogastric tube courses into the stomach .
    OUTPUT:
    
1 . Status post endotracheal intubation . If clinically indicated , the tube could be advanced 2 cm for more optimal positioning . Orogastric tube coursing into the stomach . 2 . Cardiomegaly . 3 . Substantial left basilar opacification , which could be seen with atelectasis and possibly pleural effusion , but pneumonia is not excluded by this study .