Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 5 .5 cm above the carina , in appropriate position . An NG tube passes into the stomach and out of view with side port beyond expected location the gastroesophageal junction . A right PICC terminates in the low SVC . Lung volumes are low . Right lower lung opacity has waxed and waned since ___ , more prominent today than on ___ . Mediastinal contours , and cardiac silhouette are normal . No pleural effusion or pneumothorax .
    OUTPUT:
    
Right lower lung opacity concerning for pneumonia , more or less prominent based on pulmonary edema and atelectasis .