Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is tortuous . The mediastinal and hilar contours are otherwise unchanged , and no pulmonary vascular congestion is present . Except for mild bibasilar atelectasis , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . Diffuse demineralization of the osseous structures is re - demonstrated . Degenerative changes of both glenohumeral joints are partially imaged .
    OUTPUT:
    
Mild bibasilar atelectasis . No focal consolidation to indicate pneumonia .