Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . Mediastinal and hilar contours are normal . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . Degenerative changes are noted involving both acromioclavicular joints with asymmetric widening of the left AC joint measuring up to the 7 - 8 mm . .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Asymmetric widening of the left AC joint suspicious for type II acromioclavicular dislocation .