Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there has been interval placement of a right pleural drain which enters at the base laterally and ascends to the level of the aortic knob . No appreciable pneumothorax is identified . The extent of ground glass opacity representing hemorrhage in the right lower lung is smaller . Left lung is clear . Cardiomediastinal silhouette is within normal limits . A fiducial marker is again seen in the right lower lung .
    OUTPUT:
    
Interval placement of right pleural drain with no appreciable pneumothorax .