Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with biapical scarring , more extensive on the left . There is no focal consolidation , effusion , or edema . Cardiac silhouette is moderately enlarged . Atherosclerotic calcifications are noted in the thoracic aorta . Lucencies within the left humeral head are likely degenerative . There is also expansion of the marrow space in the proximal left humerus .
    OUTPUT:
    
No acute cardiopulmonary process . Expansion of the marrow of the proximal left humerus which is not fully characterized .