Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent multifocal bilateral parenchymal opacities persist , perhaps minimally improved since ___ in the right upper lung . No frank pulmonary edema . Heart size is normal . No pneumothorax .
    OUTPUT:
    
Persistent multi focal bilateral the goal pass views , slightly improved since ___ but remain concerning for multifocal pneumonia or an atypical infection including PCP .