Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffusely increased interstitial markings are unchanged . No focal consolidation , pleural effusion or pneumothorax identified . The size of the cardiomediastinal silhouette is within normal limits . Calcification of the aortic arch is noted . There are marked degenerative changes of both the glenohumeral and acromioclavicular joints .
    OUTPUT:
    
No radiographic evidence of acute cardiopulmonary disease . Chronic findings as described above .