Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited by motion . Heart size remains moderately enlarged . A moderate sized hiatal hernia is again noted . The mediastinal contour is unchanged . Low lung volumes are present with crowding of the bronchovascular structures . Mild pulmonary vascular congestion is likely present . No focal consolidation , pleural effusion or pneumothorax is seen . No acute osseous abnormality is detected .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion .