颈部畸胎瘤是先天性良性肿瘤。 90 %以上均于围产期发现。胸片、头颈胸部 CT有助于术前评估肿瘤侵犯范围。甲胎蛋白在本病常升高 ,可连续监测其水平以判断肿瘤是否未切尽或复发。围产期本瘤死亡率高多由于不能维持足够通气道 ,体积大的肿瘤可在切除前压迫气道。当存在气道受压 Cervical teratoma is a congenital benign tumor. More than 90% were found during the perinatal period. Chest radiographs, head and neck chest CT help to assess the extent of tumor invasion before surgery. A-fetoprotein in the disease often increased, the level can be continuously monitored to determine whether the tumor is not cut or recurred. Perinatal high mortality of the tumor due to not be able to maintain adequate ventilation, large tumors can be compressed before resection of the airways. When there is airway pressure