Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are noted with secondary crowding of the bronchovascular markings . There is however suggestion of superimposed vascular congestion . There is no effusion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Low lung volumes with superimposed pulmonary vascular congestion . No focal consolidation or effusion .