Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube terminates 4 .6 cm above the carinal . NG tube is within the stomach . Heart is normal size and cardiomediastinal silhouette is stable . There is increased opacification at the right the right base with partial obscuration of the right hemidiaphragm with suggestion of a depressed major fissure . Findings ca n't be entirely explained by volume loss in the right lower lobe ; however superimposed pneumonia can not be excluded . The left lung is clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Increased opacification at the right base is entirely explained by volume loss in the right lower lobe ; however superimposed pneumonia can not be excluded .