X-ray findings of nonopaque foreign bodies in 11 cases were intracavity fifing defects and cup-mouth-shape filling defects.

• 透X线异物11例，其X线表现为食管腔内不规则的充盈缺损及杯口状阻塞，食管壁损伤者龛影形成，龛影周围黏膜平坦。