Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 .5 cm above the carina . Right IJ central venous catheter is in the upper SVC . Nasogastric tube courses below the diaphragm , but the tip is not clearly visualized . There is increased opacification at the right base resulting in obliteration of the right hemidiaphragm . There is persistent opacification at the left base and a small left pleural effusion . Pulmonary vascular congestion is unchanged . Cardiomediastinal silhouette is stable . No pneumothorax .
    OUTPUT:
    
1 . Increased opacification at the right base could represent pneumonia in the appropriate clinical context . 2 . Parenchymal opacification and a small pleural effusion at the left base is unchanged . 4 . Appropriate positioning of lines and tubes .