Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiographs , lung volumes are lower causing bronchovascular crowding . The heart size is mildly enlarged . New indistinctness of the pulmonary vasculature may be due to crowding , but also from a component of pulmonary vascular congestion . No new focal consolidation or pneumothorax . Intact median sternotomy wires .
    OUTPUT:
    
Lower lung volumes causing bronchovascular crowding . However , more indistinct , cephalized pulmonary vessels suggests a component of vascular congestion . No new focal consolidation .