Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . Although there has been interval resolution of the of the previously noted right basilar opacity , there is a new triangular opacity silhouetting the right heart border , likely secondary to atelectasis , however an infectious process can not be excluded . Bilateral costophrenic angle blunting is again seen , which may be secondary to small bilateral pleural effusions or hyperinflated lungs . There is no evidence of pneumothorax . Note is made of cervical fusion hardware . Surgical clips are seen in the abdomen .
    OUTPUT:
    
Although there has been interval resolution of the previously noted right basilar opacity , there is a new triangular opacity silhouetting the right heart border which is likely secondary to right middle lobe atelectasis , however an acute infectious process can not be excluded .