Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Very shallow inspiration . Single right chest tube . No pneumothorax . Small left , and probable small right pleural effusions . Right perihilar , infrahilar opacity , may be postoperative or represent atelectasis . Mild left basilar opacity , likely atelectasis . Shallow inspiration accentuates heart size , pulmonary vascularity .
    OUTPUT:
    
Right perihilar , infrahilar opacity , may represent postoperative change or atelectasis . Small left and probable small right pleural effusions .