Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 .5 cm above the carina . An orogastric tube passes through the esophagus , into the stomach , and terminates inferiorly at of the field of view . A right internal jugular central venous line terminates in the low SVC . Mild cardiomegaly is unchanged . The right lung is clear . There is a left lung opacity obscuring the left hemidiaphragm which may reflect atelectasis , pleural effusion , pneumonia , or some combination thereof . There is no pneumothorax . Pulmonary vascularity is normal . Dense atherosclerotic calcifications in the aortic arch are noted .
    OUTPUT:
    
1 . The right internal jugular central venous line terminates in the low SVC . 2 . Left lower lobe opacity which may reflect atelectasis , pneumonia , small pleural effusion , or some combination thereof .