Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged with evidence of prior mitral valve replacement . Clips are seen projecting over the right hilum . Mediastinal and hilar contours are unchanged with mild atherosclerotic calcifications noted diffusely . Lungs are hyperinflated but grossly clear without focal consolidation , pleural effusion or pneumothorax . The osseous structures are diffusely demineralized . Bilateral shoulder prostheses are partially imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .