Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are noted with secondary crowding of the bronchovascular markings . The lungs are without consolidation , effusion , or overt pulmonary edema . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes without definite superimposed acute cardiopulmonary process .