Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs remain clear of consolidation . Increased interstitial markings again noted throughout the lungs which could be due to mild edema or chronic underlying parenchymal changes . Cardiac silhouette is stable . Atherosclerotic calcifications again noted in the aorta . No acute osseous abnormality seen . Degenerative changes at the acromioclavicular joints bilaterally .
    OUTPUT:
    
No definite acute cardiopulmonary process .