Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral perihilar pulmonary infiltrates , more prominent on the right , with subpleural sparing , similar compared with prior exam , consider pulmonary edema , hemorrhage , pneumonitis . Increased right basilar opacity , atelectasis versus infiltrate . Small right pleural effusion , similar . Borderline heart size , similar . Sternotomy .
    OUTPUT:
    
Bilateral central pulmonary infiltrates , similar , consider pulmonary edema , hemorrhage , pneumonitis . Increased right basilar opacity , atelectasis versus infiltrate . Small right pleural effusion , similar .