Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is detected on this single frontal view . Linear opacity in the right lung base is unchanged , suggestive of linear atelectasis or scarring . Heart size is mildly enlarged . Cardiac pacing wires are similarly positioned compared to prior on this frontal view only . Widening of the left acromioclavicular joint is chronic , with chronic degenerative change .
    OUTPUT:
    
No acute findings .