Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right lower lung cavity is unchanged measuring 7 .5 x 8 .5 cm . Rapidly changing bilateral lung opacities which appeared after cardiac arrest of ___ are moderate - to - severe and have worsened on today 's exam . ET tube is in adequate position . Right jugular line ends in lower SVC . There is a neurostimulator of the upper thoracic spine . Left pleural effusion is small . There is no pneumothorax .
    OUTPUT:
    
Patient is known with unchanged right lower lung cavity . Rapidly changing bilateral lung opacities since cardiac arrest is probably due to edema which has worsened on today 's exam and is moderate to severe .