Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior exam , left pleural effusion has decreased . Left basilar consolidation has significantly improved . Right basilar atelectasis has improved . There is tiny right pleural effusion , similar . Borderline heart size , mildly improved . No pneumothorax . Normal pulmonary vascularity . Sternotomy , valve prosthesis .
    OUTPUT:
    
Interval improvement . No pneumothorax