Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again noted is mild - to - moderate pulmonary edema , slightly worse compared to the prior exam . Heart remains mildly enlarged . Tortuosity of the thoracic aorta , which is diffusely calcified , is again noted . Small bilateral pleural effusions , right greater than left are again present , with bibasilar opacities likely reflecting atelectasis . No pneumothorax is identified . Diffuse demineralization of the osseous structures is present with loss of height of several lower thoracic vertebral bodies , which are age indeterminate .
    OUTPUT:
    
Mild - to - moderate pulmonary edema , slightly worse in the interval , with persistent small bilateral pleural effusions and bibasilar airspace opacities likely reflecting atelectasis , but infection is not excluded .