Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are extremely low . Oval opacity at the right lung base is slightly more prominent than on ___ . Borderline cardiomegaly is stable from ___ . A left internal jugular central venous catheter terminates in the mid SVC , unchanged . No pneumothorax . Small if any bilateral pleural effusions .
    OUTPUT:
    
Right basilar opacity likely represents atelectasis or fluid in the fissure . No pneumonia .