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 confluent consolidation or large effusion . There may be mild pulmonary vascular congestion . Cardiac silhouette is difficult to assess given technique and lung volumes although it is unchanged from prior . Atherosclerotic calcifications are noted at the aortic arch . No acute osseous abnormality identified .
    OUTPUT:
    
Low lung volumes without focal consolidation . Possible component of vascular congestion .