Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged diffuse bilateral ground - glass opacities with an enlarged cardiac silhouette favor pulmonary edema as the most likely diagnosis . However , toxic inhalation , drug reaction , and atypical infection like pneumocystis are on the differential . No pneumothorax or effusions .
    OUTPUT:
    
Unchanged diffuse bilateral ground - glass opacities and an enlarged cardiac silhouette favor pulmonary edema . Toxic inhalation , drug reaction , and atypical infection like pneumocystis are also on the differential .