Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild right basilar atelectasis . Trace left pleural effusion or thickening stable . Heart size at the upper limits are normal . Normal pulmonary vascularity . No pneumothorax . Degenerative arthritis bilateral shoulders , with probable loose bodies in left subcoracoid recess .
    OUTPUT:
    
Mild atelectasis right lung base .