Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There has been no significant interval change . Slightly lower lung volumes seen on the current exam . There is mild pulmonary vascular congestion . Cardiomegaly is unchanged . Blunting of the posterior costophrenic angles may be due to trace effusions . No acute osseous abnormalities detected . Old anterior right and posterior left rib fractures are identified .
    OUTPUT:
    
No significant interval change . Cardiomegaly and mild pulmonary vascular congestion .