Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Mild cardiomegaly is chronic . Bibasilar linear opacities are compatible with subsegmental atelectasis . No focal consolidation , pleural effusion , or pneumothorax . Degenerative changes of the right glenohumeral joint are similar to prior . Aorto - biiliac metallic stent is incompletely imaged .
    OUTPUT:
    
Mild chronic cardiomegaly . Bibasilar subsegmental atelectasis . No focal consolidation .