Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates mild left basilar atelectasis . The right lung is clear . There is mild cardiomegaly , which is stable . The endotracheal tube is seen terminating 7 cm above the carina , and could be safely advanced to 2 - 3 cm for more secure seating . A right PICC line ends in the mid SVC . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Mild left basilar atelectasis with no evidence of pneumonia . 2 . The endotracheal tube terminates 7 cm above the carina , and could be safely advanced to 2 - 3 cm for more secure seating .