Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A curvilinear soft tissue interface overlies the cervical trachea and could reflect a prominent skin fold or superficial lesion . There is no consolidation , pneumothorax , or pleural effusion appreciated . The cardiomediastinal silhouette and hilar silhouettes are normal size . No acute bony abnormalities nor evidence of acute fracture . Pacemaker seen on the left chest wall with pacer wires terminating in right atrium and right ventricle .
    OUTPUT:
    
No chest radiographic evidence of hiatal hernia . Note that a small or sliding hernia may not be detectable on conventional chest radiographs . Curvilinear soft tissue interface overlying the cervical trachea may reflect a prominent skin fold or a superficial cystic or solid mass . Correlation with physical exam findings of this region are suggested .