Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is slightly limited due to patient rotation . Heart size remains moderately enlarged . Aortic knob is calcified . Mediastinal and hilar contours are grossly unremarkable . Pulmonary vasculature is not engorged . Retrocardiac and right basilar patchy opacities may reflect areas of atelectasis , though infection can not be completely excluded . Blunting of both costophrenic angles suggest small bilateral pleural effusions . No definite pneumothorax is visualized . No acute osseous abnormality is detected . Kyphosis and diffuse demineralization of the thoracic spine is again demonstrated .
    OUTPUT:
    
Slightly limited exam due to patient rotation . Bibasilar patchy opacities may reflect atelectasis , however infection is not excluded in the correct clinical setting . Possible small bilateral pleural effusions .