Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is slightly tortuous and calcified . There is no pulmonary vascular congestion . Hilar contours are unremarkable . There is minimal streaky atelectasis in the lung bases . No focal consolidation , pleural effusion or pneumothorax is seen . Degenerative changes are noted involving both acromioclavicular and glenohumeral joints , which are moderate in degree . Mild - to - moderate multilevel degenerative changes are also seen within the thoracic spine .
    OUTPUT:
    
Mild bibasilar atelectasis . No acute cardiopulmonary abnormality otherwise demonstrated .