Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest . The lungs are clear of consolidation or pulmonary vascular congestion . There is no large effusion based on this single view . Cardiac silhouette is at upper limits of normal for technique . Median sternotomy wires are noted . No acute osseous abnormalities detected , degenerative changes seen at the acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary process .