Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are normal . There is a rounded radiopaque structure with the appearance of the ring seen projecting over the left upper quadrant on the frontal view , not included on the lateral view .
    OUTPUT:
    
Rounded radiopaque structure with the appearance of a ring projects over the left upper quadrant on the frontal view , not seen / included on the lateral view .