Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Atelectasis and scarring in the right lower lobe is unchanged since at least ___ . Elevation of the left hemidiaphragm is also stable . Pleural thickening at the right costophrenic angle is also unchanged . Left ventricular hypertrophy is stable . Mediastinal wires are intact . Mitral valve prosthesis appears in unchanged position . Pectus deformity of the sternum is also stable .
    OUTPUT:
    
No acute cardiopulmonary process .