Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is limited secondary to relatively low lung volumes and overlying soft tissues . There is crowding of the bronchovascular markings although superimposed pulmonary vascular congestion is possible . Cardiac silhouette is enlarged but likely accentuated due to the above factors and not likely changed from prior . There is no confluent consolidation or large effusion .
    OUTPUT:
    
Limited exam . Low lung volumes with crowding of the bronchovascular markings although superimposed vascular congestion is possible .