Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is top normal size and cardiomediastinal contours are stable . The lungs are clear without focal consolidation , pleural effusion , or pneumothorax . Calcification of the aortic knob is similar to prior . Bilateral acromioclavicular and glenohumeral joint degenerative changes are mild .
    OUTPUT:
    
No acute cardiopulmonary process .