Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited due to patient rotation and low lung volumes . Moderate cardiomegaly is present , and the size of the heart is likely accentuated due to low lung volumes . The aorta is tortuous and demonstrates calcifications of the aortic knob . While there is crowding of the bronchovascular structures , no overt pulmonary edema is seen . Minimal streaky bibasilar airspace opacities likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . Degenerative spurring in the left acromioclavicular joint is present . Assessment of the right lung apex is slightly limited due to the patient 's neck soft tissues projecting over this region .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .