Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new opacification at the right base , localized to the right middle lobe on the lateral , likely representing pneumonia . There is also retrocardiac opacification , which raises the question of aspiration . The pulmonary vasculature is normal . The heart is not enlarged . No pneumothorax . No pleural effusion .
    OUTPUT:
    
Right middle lobe and left lower lobe opacities , which raises the question of aspiration or multifocal pneumonia .