颈下部则熟悉喉返神经与甲状腺下动脉的关系。
We must know the relation about the recurrent laryngeal nerve and the inferior thyroid artery.
结论甲状腺手术识别喉返神经的五种解剖标志中，以甲状软骨下角尖(或环甲关节)和甲状腺悬韧带较可靠，其次为甲状腺下极、甲状腺下动脉和气管食管沟。
Conclusion the inferior horn of thyroid cartilage and the suspensory ligament of thyroid gland are most reliable as the anatomical landmarks for recognizing the recurrent laryngeal nerve.
结果：以左肺动脉受肿块压迫的表现，间接提示左喉返神经压迫征，分别来自主动脉弓下肿大淋巴结3例；
Result: Ultrasonic indirect sign of left larynx return nerve constricted must be depend on sign of left pulmonary constricted by lymph node mass from below aortic arch 3 cases;
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