Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph demonstrates interval increase in bibasilar opacity , without large pleural effusion or pneumothorax . The cardiac silhouette remains mildly enlarged , the mediastinal contours are normal . The pulmonary vasculature is mildly engorged . There is no edema .
    OUTPUT:
    
Bibasilar opacities , likely atelectases , and mild pulmonary vascular engorgement . If there is clinical concern for infection , recommend repeat dedicated AP and lateral views in the department .