Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lung volumes are low material lying for this there is invaded ground - glass opacity in the lower lungs bilaterally which is concerning for pneumonia . There is also likely a superimposed component of atelectasis . There is no large effusion or pneumothorax . Heart size is difficult to assess . The mediastinal contour is prominent but this is stable and likely reflects unfolded thoracic aorta . No definite bony abnormality . Chronic degenerative disease of the right shoulder is noted .
    OUTPUT:
    
Low lung volumes with vague opacities in the lower lungs concerning for pneumonia and atelectasis .