Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . Cardiomegaly is unchanged . Cardiomediastinal and hilar contours are unchanged . There are low lung volumes . The pulmonary edema has decreased . Right lower lobe opacity and pleural effusion are not significantly changed .
    OUTPUT:
    
Mild pulmonary edema decreased from prior study , right lower lobe consolidation and pleural effusion are not significantly changed .