Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . Mild basilar atelectasis is noted . No convincing signs of pneumonia or overt edema . No large effusion or pneumothorax . Cardiomediastinal silhouette is stable and within normal limits . Degenerative changes in the bilateral shoulders noted with high riding humeral heads suggesting chronic rotator cuff disease . The bones appear demineralized diffusely .
    OUTPUT:
    
Limited due to low lung volumes . Mild bibasilar atelectasis . No overt edema or pneumonia .