Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is obscuration of the right heart border which could be due to slight pectus deformity . The lungs are well expanded and otherwise clear . Cardiac silhouette is within normal limits . No acute osseous abnormalities . Left shoulder arthroplasty changes are noted . Mid thoracic dextroscoliosis is noted .
    OUTPUT:
    
No definite acute cardiopulmonary process .