Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ETT in standard position . The nasogastric tube traverses midline within the tip is not seen . Right internal jugular vein sheath is unchanged in position . Left PICC line ends in the mid SVC . No pneumothorax . Mild pulmonary edema persists . Right perihilar focal opacity is becoming slowly and increasingly more conspicuous since ___ , concerning for superimposed pneumonia in the appropriate clinical setting . Moderate dependent right pleural effusion and probably mild left pleural effusion and are overall unchanged . The heart size is normal .
    OUTPUT:
    
Slowly developing right perihilar opacity concerning for pneumonia .