Conclusion:Inquiry detailted history,careful X-ray examination and attentive lung auscultation are helpful in diagnosis of respiratory tract foreign bodies.

• 结论：诊断呼吸道异物应详细询问病史，认真全面的肺部检查，结合X线摄片，综合分析，在鉴别诊断呼吸道疾病时应考虑到本病。