Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . As on prior , extremely low lung volumes are seen . There is no definite consolidation nor effusion . Cardiomediastinal silhouette is within normal limits . A right - sided dual lumen central venous catheter is again seen . Dense mitral annular calcifications are also noted . Severe degenerative changes seen at the shoulders bilaterally . No acute osseous abnormality detected .
    OUTPUT:
    
Low lung volumes without definite acute cardiopulmonary process .