Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is normal size . Calcified hilar and mediastinal nodes are again noted . A vagal nerve stimulator partially obscures the left mid chest . There is no focal consolidation , pleural effusion , or pneumothorax . Deformity of the right clavicle is unchanged . No radiopaque foreign body is identified along the expected course of the esophagus or in the upper abdomen . Cholecystectomy clips are noted .
    OUTPUT:
    
No radiopaque foreign body is identified along the expected course of the esophagus or in the upper abdomen .