Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . Transverse cardiomegaly . Bibasilar opacities most likely represent atelectasis with small associated effusion . No overt pulmonary edema . Right coronary artery stent in situ . Nonspecific density projecting over the central superior mediastinum .
    OUTPUT:
    
No overt pulmonary edema . Bibasilar atelectasis with possible small associated effusions .