关键词: 纵隔畸胎瘤, 经口腔前庭入路, 腔镜手术, 神经监测, 美容效果

Abstract: This study reports a case of mediastinal benign teratoma treated with endoscopic resection via the transoral vestibular approach. We retrospectively analyzed the patient's clinical data, diagnostic and therapeutic process, intraoperative findings, and treatment outcomes. As a benign germ cell tumor, mediastinal teratoma is most effectively managed by surgical excision. We presented the case of a 16-year-old female patient with a preoperative diagnosis of an upper mediastinal benign tumor. Given the patients strong preference for cosmetic outcomes, a multidisciplinary team opted for an endoscopic transoral vestibular approach for tumor resection. The procedure was successfully completed with complete tumor removal. Intraoperative nerve monitoring effectively preserved critical structures such as the recurrent laryngeal nerve. Histopathology confirmed a benign teratoma, and no significant postoperative complications occurred. The patient expressed satisfaction with both the therapeutic and cosmetic results. The transoral vestibular approach may be considered a viable surgical option for mediastinal teratoma.

Key words: mediastinal teratoma, transoral vestibular approach, endoscopic surgery, nerve monitoring, cosmetic outcomes