Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are seen with secondary crowding of the bronchovascular markings . There is no definite superimposed consolidation or large effusion . There is elevation of the right hemidiaphragm as on prior . Deformities of multiple posterior right ribs are compatible with previously seen right - sided rib fractures .
    OUTPUT:
    
Extremely low lung volumes limiting exam without definite acute cardiopulmonary process .